Eheim 1260 vs Iwaki MD20-30?

[EnJoY]

How does the Eheim 1260 pump compare to the Iwaki MD 20 and/or 30 series? Do they both add a lot of heat to the loop compared to the danner mag 3 or eheim 1250? Is there performance level overkill?

[JeffPH]

1260 is a big big pump hehehe its almost twice the size of the 1250 hehehehe i use it as fountain in my pond cant hear the noise tho coz its submerge hehehe :)

[Reflex1]

its huge man. like over 21cm ...sure the eheim will fit? ...will deff. need some case moddin perhaps.
i got the 1250 ...and is already hard to fit in my case.
unless ur making a rad. box get the iwaki.
also no smaller than 1/2" inch ID tubing is recommended since they push a lot ;) ....i've heard barbs pop out :eek: don't want that to happen :stick:

[8-ball]

The 1260 isn't really very good for watercooling.

The head is very low.

It is designed to shift a lot of water through a relatively unrestrictive loop. This is not something most water cooling loops can claim to be.

The Iwaki would offer better performance.

8-ball

[freecableguy]

1250 would be a much better choice.

[AngryAlpaca]

1060 will put more flow through a system than a 1250, but with a lot more heat. There are several kinds of the Iwaki 20 and 30 pumps, and some of them are VERY good. Save your money and grab a standard pump, though. The Mag 3 puts out more heat than the Iwaki 20, and the 1250, but less than the 30 and the 1060. I think the 20RZLT (I think that's the model number... The one with the super high head pressure) would be the best choice, if price and space are not an issue.

[Craig]

Iwaki MD-20rlzt

Best water pump on the market for a water cooler at this time, no other comes even close..........as long as you can handle pay'n $180.00 for a pump.

Avoid the MD-20rlt & MD-20rlxt, as well as both the 1060 & 1260 Ehiems, 8-ball's advice was right on in regards to these pumps.

Danner mag 3 is pretty high performing however, at $50.00 a much lower cost option that does perform well.

[AngryAlpaca]

40 dollars. I'm pretty sure that in the vast majority of systems (We've switched to medium resistance blocks) all standard pumps will perform pretty much the same. The 1060 and 1260 are different names for the same pump, BTW, and the 1060 would also get better flow than the Mag 3 or MCP 600, I don't know about the Iwaki MD-20rlzt, though, I'll have to do some calculations.

Edit: None of them will make it to 2GPM, but all of them will make it to 1GPM... Thus, they are all the same! Well, there are minor differences, but the temperature differences between the highest and lowest performing Iwaki MD-20rlzt and VA1300, respectively, should be less than 1 degree, based on flow alone, and that makes the MCP 600 the best pump, due to the lower heat... In conclusion, buy a Mag 3. Same performance, 1/4 the price, and a 3 year warranty.

Re-edit: I think the Iwaki MD-20rlzt will make it a little bit past 2GPM, but the performance difference between 1 and 3 GPM is practically negligible.