New/old DD barb size?

[aMp]

I've got an Acetal Maze4 GPU coming in, but it's got 3/8 barbs. I figured I'd just replace them with a spare set from my old Maze4 or TDX. I've heard (damned if I can remember where) that DD switched its barb threading to G1/4 a while back. Anybody know when that was?

The new Acetal was purchased in April 2006. The TDX and old Maze4 date to December 2004. Same threads, or will I need new barbs?

If the latter, any recommendations for 1/2" ID G1/4 barbs for an Acetal?

[creidiki]

they wont be 3/8, theyll be 9/16UNF.

[aMp]

I'm sorry, I'm clinically retarded. What I meant was that the guy shipping the block to me used 3/8" ID barbs, but I run a 1/2" ID loop.

So what you're saying is that DD's old threading is 9/16UNF -- which means I'm in the market for new barbs. Any reason to pick one brand of 1/2" ID G1/4 barbs over the other?

[creidiki]

9/16 UNF you can get from DD or Cooltechnica.

Our big favourite for G1/4 are eddy's barbs, they cost the same as getting a pair from DangerDen, but youll be waiting 7-10 days because they'll be coming from eastern europe.

[septim]

Hello Mark, Thank you for sending the pictures, makes it easier to identify the fittings. All of the fittings on the right are the 9/16-18 thread High Flow. (new low prof maze4 GPU, june 2006 from petra's tech) The ones on the left are G1/4 thread(mag 2 & RBX, june 2006 from DD store), and are either High Flow or Perfect seal. I hope that this makes sense. Best regards, Kathi Danger Den

had the same problems also cause they shipped perfect seal barbs instead of the high flow ones, making 7/16 tubing a chore to get on em...