What size tubing/fittings do I get to make sure my MCP655 will still fit? 1/2" or 3/8

C

crewxp

Limp Gawd
Joined
Jul 27, 2009
Messages
393
I'm upgrading my watercooling loop.

Right now I have a MCP655 Pump connected to
PrimoFlex Pro LRT UV Blue Tubing -7/16in. ID X 5/8in. OD (PFLEXP-716-B)

I'm about to order my watercooling blocks, but I do not know whether to chose 1/2" or 3/8" Fittings.

I'm purchasing new tubing, but want to still use my old tubing.

Can someone smart help me out!?
 
If you have a stock pump top, you should be using 1/2" tubing, unless you're using the method of heating it in boiling water, then jamming the tubing on so that you don't have to use clamps.

3/8" fittings will definitely not work. 7/16" barbs would be the proper size. 1/2" barbs would be used with the above method.
 
It was a while back but I remember heating it up over the pump. It was difficult.

So the Type of fitting I'm supposed to be using is 1/2"? Not 3/8"

And would you recommend me buying new tubing? (1/2")
 
1/2" ID tubing will work fine with 1/2" OD barbs.
7/16" ID tubing will also work fine with 1/2" OD barbs.

Get 1/2" barbs and tubing.
 
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