http://imgur.com/flRXB.jpg
Looks thicker than their 120mm rads too.
Printable View
http://imgur.com/flRXB.jpg
Looks thicker than their 120mm rads too.
indeed they do. I'd guess somewhere around 50mm perhaps? But they look great. I'm still missing 140mm GT's :rolleyes:...
They look really great, are they available now? How about prices?
They look available already, MSRP 41.1 EUR, 62.1 EUR and 81.3 EUR respectively.Quote:
Originally Posted by rheydt
Looks like 55mm thick -> Dimensions (LxWxH): 177x145x55mm
http://www.ekwaterblocks.com/shop/ek...d-xtc-140.html
Those shrouds don't look very deep, which would make for a pretty thick core section. Hope the fin spacing's increased enough to compensate.
Hopefully they're reasonably priced. The only thing keeping me from recommending their other rads is the price.
:yawn2:
Specs miss main characteristic of them all - FPI. :/
Photo looks high res enough if someone wants to count em!Quote:
Originally Posted by churchy
I think their 120mm rad prices are similar to the Swifties, just that shipping from Europe makes them more expensive for US buyers/resellers.Quote:
Originally Posted by SimpleTECH
The fin density is about 4,3 fins per cm which is about 11 FPI.
Eddy_EK: thanks for info. But it should be listed among other specs in product webpage's technical details aswell. Especially as important characteristic as this, which is mostly main one that lets make some guesses/impression on how rad will perform / what fans should be bought/used with it etc. Otherwise it can be like all those people that bought GTS 30FPI rads because of mistakening that 'stealth' marketing buzzword in description stands for 'silent' cooling :). Good thing there are skinneelabs rad reviews to look up FPI info .. but not all of buyers know about it and they haven't reviewed all existing rads, and it sometimes gets really annoying to google out that info for some lesser known rads, when all you get at most are some reviews in german forums that should first be translated and no chance to check reviewer credibility or how true their data/measurements are .. so imho it simply is best if buyer can find that info in vendor's web page.
P.S.
And if you extend description for these rads, imho it's worth to do that for previous rad models by EK aswell.
P.P.S.
And it would be simply wonderful, if in each rad page there would be downloadable pdf with rad's template. It would simplify choosing right one size-wise, planning and performing required moding by a LOT. Just print out, cut, and dremel/drill exactly where/what needed. It was good thing that i left some material undremeled when i used some other rad for same fans templates before actually recieving rad (BI SR1) on hands. I almost could have wasted my expensive case by wrong template for seemingly similar rad. So template of right one is really nice bonus allowing to start moding long before ordering/recieving rad itself.
Though some find the necessity for a listed FPI less important, I do agree on Churchy's P.P.S., a rad template for each rad would be nice. Though usually the MNPCTech template suffices, it feels better to know you're using the template made by the manufacturer of the rad you have :).
Just as Churchy stated .. Smart people but things based on specs and real reviews . Not knocking these rads but if your about performance , then you won't just buy something cuz of the name until real reviews have been done .
Well, knowing that it's 11FPI is already big step ahead, as it already shows that no need for 3K rpm fans for this rad for it to start cooling well :)
Alexandr0s: IIRC MNPCtech had only templates for 120mm ones, no? No use for me for my 140mm rad :/
Already asked for :D:D
http://www.xtremesystems.org/forums/...d.php?t=244234
My suggestion would be to provide real scientific performance specs. Swiftech has a good example. Something like this would be awesome otherwise we really don't know what we are buying in terms of performance.
Restriction:
http://www.swiftnets.com/assets/imag...0_PD_vs_FR.gif
Thermal Performance:
http://www.swiftnets.com/assets/imag...0_HD_vs_FR.gif
Fan:
Delta
WFB1212M @ 12v
.20
2100
.134
144.8
~37
I know it's more work, but I think it would be really cool if manufacturers would start providing us a little more in the performance specifications area. It gives us an impression that there really was science used in the development of the product.
Quote:
Originally Posted by Alexandr0s
Agreed. i definitely have emailed scythe multiple times to nudge nidtec into making some 140mm gt's. sadly no one has gotten back to me :(
Where is the quad 140? I would buy 2, the gtx series fpi is too high but there is no competition in this niche size.
Edit. I'd ditch my gtx 280 for the matching set also :D
I just wish there was a larger selection of 140mm fans to choose from... :(
don't worry, in time, there will be plenty to choose from. you just gotta wait until these hit mainstream. remember all those years back when 80mm fans were standard? 120mm fans were rare, and now they're the most popular.Quote:
Originally Posted by Section8
+1 , only real reason i havent gotten 140mm rads..Quote:
Originally Posted by Section8
Good point. :up:Quote:
Originally Posted by WhiteFireDragon
Yes but, that time frame was many years in the making. I don't think it would be a stretch to say that the majority of us are far too impatient to tolerate it happening again. Yet the Manu's would be more than content to take that long if they feel there isn't a strong enough market to make it worth the R&D and production line revamp costs.Quote:
Originally Posted by WhiteFireDragon
I think i've heard this for a year or more already. YL's 140mm's are OK fans, at least and the price is :up:Quote:
Originally Posted by WhiteFireDragon
I recounted again.Quote:
Originally Posted by Eddy_EK
The number is 10 FPI.
trn: YL are wonderful fans. Good noise/performance ratio, ones of cheapest ones .. but sleeve bearing. = bad for horizontal mount position. Unlike 120mm fans where we have wonderful GTs with ball bearing, situation with 140mm fans is worse. There are ball or hydrodinamic bearing 140mm fans aswell, but they don't shine in noise/performance area. And still no 140mm GTs in nearest future :(
Eddy: even better (for silent fans most @LC seem prefering to use). Any comments on extending product description pages with FPI && adding rad templates as per my previous post?
All templates are under Product specification sheet now for product :)
Eddy: Thanks. Now that's what i call - customer satisfaction :). EK FTW.
+1, #1 watercooling products in my booksQuote:
Originally Posted by churchy
Noiseblocker NB-BlackSilentPRO PK3 (or PK2 for those who want silence).
PK3 moves some serious air.
Quote:
Originally Posted by Bladesinger7x
The only problem with those is that they also use sleeve bearings. Don't buy any of that "Nano-SLI bearing" crap. It's all marketing BS. I have several of these fans and out of curiosity, ripped one apart to find out what was actually used inside to build it.
All I found was a big ole plain brass sleeve bearing coated in a ton of grease. That's it :down: I have pics on my comp at home of the post-dissection if anyone doesn't believe me.
Given the fact that their construction is not so much different from the YL fans, all you're paying for is the fancy opaque fan blades, the NB name, and the extras they threw in like the silicone gasket and extension cord. I'll take the YL 140mm fans over those any day.
Thanks for the heads up Ketzer :D.
Eddy-
I was looking at your template here for the XTC 420:
http://81.90.180.2/ekwaterblocks/sho...1109860151.pdf
If I read that right, is it saying that the screw hole spacing on your rad is 15mm?
If so, this differs from all of the other 140mm size rads currently on the market, which are 20mm screw hole spacing. For reference the HW Labs diagram, but the Thermochill 140.3 follows this same spacing:
http://www.hwlabs.com/images/gtx/d_gtx420.jpg
Can you please clarify which screw hole spacing the XTC series is using? I think this is important as all of the 140mm rad grills and case panels I've seen out there all use this 20mm spacing..
Hmm, if it really has different fan spacing it's bad. = Needs specific radgrills, unfit for any other rad. Same for premade fan/rad cutouts in cases. Maybe someone can order some customised DD/mountainmod cases for different spaced rads, but probably most will order standard spaced rad if other things/performance being same.
Hmmm...
I think something is weird here.
If the HW labs have 20mm spacing, they have 5mm space between the fans, meaning loss of pressure.
Thats exactly what I thought.
excellent rads, thanks for the pics :up:
Just remeasured my SR1 560, yup, 20mm spacing. Have to check other vendor 140mm rad specs ..
Thermochill's PA140.3 seems also having 20mm,
Koolance's HX-CU1403V also 20mm.
Couldn't find spacing info for Phobya 140mm rads. But judging by it being even longer then HWLabs GTX/SR1 140mm rads, i'm guessing that 20mm spacing also is possible.
Who else is making 140mm rads these days? Magicool? Also couldn't find info.
One could count feser monsta rads in, but are those still made?
Anyway, 140mm rad grills being sold these days at LC shops usually have mentioned as made for HWLabs GTX rads .. so most probably 20mm it is. EK seems taken old thermochill's PA role of non-de facto-standard spacing role :(
I just looked at my SR1 fans, and they have barely any space between them, maybe 3mm top.. 140mm fans have bigger frames i guess ?
If there weren't already manufactured big batch of dual and tripple rads (but seeing new EK rads apearing in other LC shops i doubt it) i'd almost advise making rev2.
On my 3x120 spacing is 15mm and my Yates are touching eachother. It's almost hard to get all of them in their mounts. You definately aren't going to take the middle one out and expect it to go back in on its own.Quote:
Originally Posted by gmat
Eddy,
Well, there's nothing stopping you guys from keeping them the way are with 15mm spacing, but this is going to require custom case panels and rad grills to fit and/or mount the XTC series because just about everyone has more or less standardized on 20mm spacing for rads using 140mm fans. MountainMods, Lian Li, Bitspower, etc., etc., all use the 20mm spacing on their 140 rad products.
It's unfortunate because I would have given these new rads a try if they had 20mm spacing, but as it is, it seems too much of a hassle right now because nothing will fit them. Kind of a shame.
Well, it doesn't affect 1x140mm ones at least. Another way to hack/fix situation would be relasing some own EK radgrill and put on shop. But imho rev2 in long term would be better choice, at least now, when rad is just released and haven't been manufactured that much as it could by nearest years. Having spacing same as de-facto standard in long term imho will help sell more rads then initial replaced rev1 ones. Third way would be to try releasing rad with both screwholes for 15 & 20mm spacing to be compatible with rev1 & also all cases/radgrills released for 20mm spacing.
i would rather have seen 15mm be the standard, or you would see some electrical tape between my fans for some good old fashions pressure keeping
Manicdan: Unfortunately there are lot of things that are driven by de facto standarts instead of ones 'that should be better'. And de facto ones are made by majority of vendors. It's way less probable for all the other rad vendors to change their existing 140mm radlines. Same for radgrill / case makers - it's very unprobable to release something customised small batch for single vendor products only. It simply doesn't make business sense. That's why as one of variants to help situation i mentioned EK releasing their own radgrills, but in long term - rev2 with 20mm fan spacing just like other rads on market. If one makes component, one has to make shure for it to play well with/fit other ones, even ones others make. Only integrated sets can skip ensuring compatibility bit (in this case case+rad, or radgrill+rad).
i know its not going to change to 15mm, which is why i said would have
I would keep the rad spacing at 15mm if I were you, when the 140 rads do become the new standard and when different rad manufacturers strive to extract every last little piece of performance from them they will revert to the 15mm spacing to close off that gap between the fans.
Am I missing something but why would anybody include a 5mm or so spacing between fans? isn't it obvious that it is going to decrease the performance of the rad, maybe not even measureable on the low fpi systems, but surely on high fpi rads?
Mudgey: only high fpi 140mm rad - hwlabs BI GTX one. So all the rest fall into low fpi category where you mentioned that it matters a bit less. Of course EK can leave things as is and do nothing, but my guess that it will result into 2 things: 1) rads sold 1/3 (pure guess/speculation of mine) from what could have been, 2) few dissatisfied customers among those who buy rad without looking all the small details including fan spacing first expecting anything being standard, and then finding out that it doesn't fit their freshly bought blingy looking radgrill and/or case after what they need to seek for much more limited choice specific rad grills (if such exist at all at that time) / or do much more unexpected moding / or return rad to shop, if money back warranty aplies / or clench teeth and write purchase in losses to unatention. It took long time for thermochill to release rads with updated fan spacing, that's why i sugggested releasing new version for EK right away, while these rads are still new / haven't been produced in large volumes to lessen money lost.
OK, I checked;
EK. Phobya and Magicool have same ~15mm spacing, also LianLi...
Coolermaster Centurion 590 has 20mm...
My Lian Li case (A71F) has 20mm spacing for 140mm fans in front, since the 2x140mm SR-1 fits perfectly (or does the SR-1 use another spacing ?). I also believe the other Lian Li parts like 2x140mm tops have the same spacing.
And what is the spacing on MountainMods 3x140mm panels ?
It seems there is a difference between European and american rad spacing.
I for one will be keeping the 140mm spacing to 15mm if I get around to finishing any cases!!
I wouldnt recommend anybody get the Centurion 590 case, its not great for watercooling and you cannot fit a 140 rad in the roof as the motherboard sits too close. The only option is to fit the rad on the top, on the outside of the case, but external rad setups aren't exactly elegant....
Eek. That means very fragmented market of 140mm rads which is smaller then 120mm already, and no existing standarts of majority others can follow. Well, at least if EK is not alone, maybe there will be more possible radgrills for their rads aswell.Quote:
Originally Posted by Eddy_EK
Eddy: btw, it's not possible to make rad 'universal'? Afterall, it means redrilling just one of two fan mountpoints for dual and two for tripple (leaving middle fan screwholes as is, but ones for 1st and 3rd rad make for 5mm longer oval shaped (or another drilled hole set 5mm furthier) , so that user can mount in both ways/both spacing types ..)
I thought of adding some mounting threads but tuat might ruin all the looks.
Will have to check...
I think the problem is that right now that is no standard for 140 rads spacing.
So case manufacturers do what they want.
For example: xigmatek has 21,65 mm fan spacing :S
Eddy_EK: whatever choice you do but imho something should be done. It's less of a problem with case fan spacing, as most do case mod with good old dremel for bigger rad placement then most vendors originally planned for anyway, but rad grills .. unless it's externally mounted rad, 90% chance there will be some rad grill slaped on cutout. And only ones i know for 140mm rads (for bigger then 1x140) are Bitspower's / MNPCtech's / iandh StealthGrill. All made for HWLabs 20mm spacing. Maybe because they were among first at 140mm rad market (i don't count overhyped low-volume&underperforming TFC monsta). All the rest radgrills i've seen at many LC shops are for 120mm rads. Of course, there is option for customised ones (eg. custom spaced order directly from iandh, or if moder has access to laser cutting equipment), but in big picture it will be small percentage, as most prefer buying ready made @ some moding or LC shop.
As for mentioned possible ruining of looks, imho it's a bit overrated. After all, in most cases fan mount holes are hidden by fans/radgrill anyway, and even if can be seen, eg. fanless side inside case, it's black hole on black rad, which can be hardly noticed. BTW, there is also option to make one rad side 15mm spaced, and another 20mm spaced (as rad grills are slapped only from one side anyway, so no difference how are fans spaced on rad side inside case). I'd prefer for both sides 'universal' mountholes for fan screws though, as per previous post of mine.
i would use this as an opportunity for an upsell, make a custom shroud that goes
case > fans 20mm > shroud 15mm > rad
as long as you put it all together, then attach it to the case, your fine. and you would only need about a 5mm thick shroud, which i dont think would make it horribly incompatible with cases that have the mobo too close to rads, and it still gives optimal (or better) performance due to good sealing and that extra spacing for balanced airflow spreading.
it shouldnt be your problem to fix other cases, but you can have a solution that lets people know that your offer exceptional compatibility, without sacrificing performance.
Not to mention adding extra holes 2.5mm away from the existing holes probably would just end up with one big oval hole :(Quote:
Originally Posted by Eddy_EK
Two different versions?
Sell whatever 15mm are made as a "15mm spacing" model, start production with 20mm spacing?
I doubt it would be commercially viable really :shrug:Quote:
Originally Posted by BeepBeep2
Hmm, how did fact that there are threads and oval hole doesn't fit for such purpose skipped my mind? But is it that bad with dual M3 holes with centers 5mm apart?
Actually, yes. .but it's kind of an ugly hack. He could use clip nuts that are small enough and just have a small slot for the screw to pass through the rad itself, end user would decide where to put them.Quote:
Originally Posted by churchy
http://www.ampsdirect.com/images/DSC00236.JPG
Such small clip nuts most probably will be candidates to easily get lost and yeah would look like ugly hack. Two threaded holes much better solution imho.
I think 15mm should be the standard. It became the standard for 120mm fans and there is no reason not to follow that standard.
The MCR420 uses this same 15mm standard per their drawing.
I can't see why you would want gaps between fans, 20mm just doesn't make sense to me unless there was a special fan that required the extra space.
15mm makes the most sense, cases should be designed to fit components not the other way around. You could potentially have an oblong hole in a case that would be compatible with multiple spacing standards, but you can't really do that with the radiator when you need threading.
Eddy,
For the future whilst there is still a certain amount of doubt in the air to which size may become the norm, you may want to get the next batch made 10mm longer and incorporate removeable fan mounting plates that bolt onto the side, for instance like what magicool do with their slim rads that rivet the U shaped fan holders onto the sides of their rad. You could offer a mounting plate for both sizes of spacing and even offer an extended shrouded version. The downside to this is the increased cost and extra rad mounting plates to stock.
.. and the upside of extra drilled screwholes would be minimal increase in manufacturing costs.
But the MCR420 is a 4x120 rad? :rolleyes: That's why Swifty's naming system really fails IMO :rofl:Quote:
Originally Posted by Martinm210
I have no problem taking special orders if Eddy offers 15mm spaced version of his radiators, however special orders can mean longer wait until the mill is open after production runs.
fyi: Added a 2x140mm template (20mm spacing) Simply layer additional print outs for 280, 420, 560 Radiators
http://www.mnpctech.com/Radiator_Grill_Templates.html
15mm is the defacto standard in the US market for 140mm.
trn: Please examples backing that. So far it seems on contrary, EK/Phobya/Magicool being european firms, and 20mm camp consisting of other side's of pond HWLabs and Koolance (with exception of Thermochill (UK?)).
Whoops, not sure what I was thinking there.Quote:
Originally Posted by Alexandr0s
I do like the 140mm sizing though, if pricing comes down a bit, I may switch over myself. A 3x140 is darn near equal to 4x120 anyhow. I've just been waiting for a lower density lower cost 140mm option.
Some of these EK triple 140mm would probably work well for the base box I'm thinking about anyhow.:up:
Is there anywhere in the US that is carrying these yet?
Martin: just mount them vertically, so that 140mm sleeve bearing yates can be used without reduction of their life. Unfortunately there are no 140mm fans as good as GTs performance/noise wise+having ball or hydrodinamic bearing :/
Martin, any chance I could get some short term access to you via PM?
Yeah, I might do just that. I'm just getting tired of the same old test bench with wires and dust everywhere and looking to go back internal with some sort of custom base rad box.Quote:
Originally Posted by churchy
I guess I could also just work with case pressure and avoid the whole fan/rad direct mount.
hmmm...not sure yet.
Yeah, sorry, forgot I still had that turned off. Should work now:up:Quote:
Originally Posted by Waterlogged
Thanks, if you haven't noticed it by now. . .YGPM.;)Quote:
Originally Posted by Martinm210
I am using 140mm fans with fluid bearings... Actually found a few models.Quote:
Originally Posted by churchy
I was going to get a TFC Monsta Lite 420 Radiator for My HAF-932 case in January 2011, I measured the case and the rads specs say It should fit between the area where the drive bay is at, provided the holes line up of course, Sure I'd love to use 140mm fans, preferably ones above 90cfm, Ideally at 113cfm, I know above 92cfm, I must be dreaming, But hey, I can dream, So why not?
It's too bad Delta doesn't make 140mm fans, At least I don't recall seeing any in that size.
I did find this one Here to be acceptable for the rad I mentioned, But yes It has 120mm fan mounting holes, But since I have a HAF-932 case, That's acceptable to Me(92.40cfm). For those that have only 140mm fan holes, Here's one and It does 90.04cfm according to Frozencpu.
Oh and I looked up the Noctua NH-D14, Nice looking slow speed fan, It does 110.3 m³/h (almost 65 CFM) according to tweaktown, No thanks, I'll pass on that one, too slow.
http://www.performance-pcs.com/catal...ducts_id=27361
*runs away and hides*
Specs are wrong, I believe they are 140CFM @ 2800RPM...or 2300RPM there are several versions out there. :D
Well It's only about 2.5dba higher than the Delta AFB1212SH-PWM 120mm Super High Speed Fan (113 CFM, 46 dBA).Quote:
Originally Posted by BeepBeep2
This place Here says 2300rpm on the YL 140cfm 140mm fan.
Weird..Quote:
Originally Posted by Waterlogged
The Yate site notes the SH model is rated at 2800 RPMs/140CFM, yet PPCS calls them 2000RPM/140CFM
I had some of the Koolance 140mm high speeds a while back I bought there rated at 1700RPM, but they are not even carried anymore.
It seems 140mm fans are a bit of a mystery still, not really sure what is thought of as good. I'm guessing I might try some medium speed yates when I switch over to 140mm rads.:shrug:
Martin: or forget about getting bored with testing and make up another fan roundup but this time with 140mm rads/fans :)
BTW, has anyone used Yate Loons with ball bearing? In manufacturer specs their noise/performancy is shown as same as for sleeve bearing ones, but is it really so?
Sometimes, I think the Manu's don't even know what their making. About 7-8 years ago, I bought a bunch of these fans from SVC after I had gotten one with the Asetek water cooling kit I had gotten from FCPU because it was pretty decent. I didn't have any way to check the RPM's on them at the time so I ran on a simple rheo setup I had made. Well, about a year or so later I had gotten my hands on a pretty decent fan controller with RPM readout (Super Flower's version of this) and was shocked to learn that they were spinning @ 3750RPM. I can't really say if the CFM numbers are that far off as well (would like to test them someday;)) but, I can say that they make a bit more of a racket than 35dBA. They also have a bad resonance vibration from the frame which seems a bit thin for a fan with this much power. If I spent some time reinforcing the frame, they'd probably be half way decent undervolters.Quote:
Originally Posted by Martinm210
PPC is wrong.
The thought did cross my mind, but I'd have to buy a single 140mm radiator and build a whole new test/flow chamber. I do have a cool new HD video camera, just not sure I want to go through that again. I'm interested, but I've done this before and know what I'd be getting myself into this time..:eek:...:DQuote:
Originally Posted by churchy
Martin: why single rad? Imho it's worth to buy some larger one that might be used after finish of tests for actual cooling something?
EDIT
Crap. Forgot that larger rad also means buying more fans of each type for test. Though hmm .. does it? As in will 1x140 rad cooling performance differ much from 3x140 but with just one fan and other fan places closed with something to not let air through for airflow loss?
My preference is the video method using an anemometer and volt meter with a fan mounted to a single fan radiator. This simulates a good average amount of air restriction imposed on the fan and allows measuring and comparing actual air flow through a radiator. Granted there are different density rads and restriction, I just think lower fan speed is where the majority is so I tried to pick what would be most common. A single fan and single rad should be roughly the same restriction as three fans on a triple rad. You could test with a triple though, it would just mean a lot more fans and $$ is all. If you tested one fan on a triple radiator, you'd really be testing on something very low in restriction which would tend to favor the fans tuned more for open air conditions rather than a radiator where pressure performance matters.Quote:
Originally Posted by churchy
I can buy a magicool 140 for only $29, so it's not a big deal and more economical wasting the money on the test 140 rad rather than 3 fans per test. Considering some fans can be as much as $30 a piece, just one test would already make the radiator purchase worth it even if I would never really use it for anything else.
i think the best compromise would be to make oval shaped holes for the triple and double 140mm rads. for the triple, make oval holes for the two outer fans and the middle slot can just have a normal hole. and for the double, just make oval holes for one of the fans. that doesn't sound too hard does it? the only problem i see with oval self-taping holes would be that the threads would now become a little weaker.
i just bought this NZXT Hades case for all internal WC'ing, and there's a slot on the top for a dual 140mm rad, but the spaces from center to center between fans is 17mm :mad:. is 2mm lenient enough to fit 15mm space rads like this EK one?
Probably if you drill out the case holes just a touch.Quote:
Originally Posted by WhiteFireDragon
I wouldn't want to see something elongated on the rad. M3 screws are already bad enough for cross threading, prefer M4 by far. If anything it would have to be some of those floating nut things which I wouldn't like much either and probably adds unecessary cost.
Is Hwlabs the only one doing 20mm? What about the Pa140s?
Ahh..thanks.Quote:
Originally Posted by skinnee
Might be better just sticking with the 20 I guess if both HWlabs and Thermochill have gone down that road..
cam's back? :woot:
i don't think making it longer by 5mm is that bad is it?Quote:
Originally Posted by Martinm210
No, just would look funny and you would have two sets of holes for part of the fans and not all or symmetrical. Also 5mm may not be enough room to make adjacent threaded holes..that's pretty darn tight.Quote:
Originally Posted by WhiteFireDragon
Sounds like most of the high end rads and cases are following the 20mm spacing, so you're probably better off going that route or just stick with the 15 and expect people to drill/tap their own holes??
martin:
20mm fan spacing:
a) rads: HWLabs(measured myself on SR1); Thermochill; Koolance
b) radgrills: Bitspower(here marked as 15mm, but mjtir told that IRL it's 20mm); MNPCtech; iandh's Stealthgrills
15mm fan spacing:
a) rads: Phobya(probably =Magicool,=Nanoxia(clone companies?)); EK Waterblocks; Feser(IIRC discontinued rads)
b) radgrills: custom MNPCtech; maybe +iandh if custom order aswell.
My Bitspower radgrill has 20mm spacing.
I spend much time opening that area in my case only to find now that many 140 rads would not fit.:(
mjtir: as i wrote, three radmaker rads that were first with 140mm rads fit it (well, maybe Feser Monsta was before HWLabs' GTX, it's hard to check now, but it was made in small quantities and was quickly sold out despite it's not as stellar cooling performance as it's looks/hype).
It's newer rads like Phobya/EK that doesn't fit BP if it really has 20mm fan spacing, both are recently released rads, so i understand why BP chosen 20mm, as that was the only spacing for all rads available when it was designed.