catch can setup

[Bigmike4g63t]

I have read a lot of info on here about catch can setups and I know how I am going to do it. I have 2 questions though. Does it matter the exact type or brand of check valve that goes between the catch can and the intake manifold? Also what size vacuum lines are these?

 

[1990TSIAWDTALON]

A lot of us use THESE for catch can, power brake hose and PCV hoses Mike. I started with plastic units but the metal ones hold up better.

 

[Bigmike4g63t]

Thanks Marty!! I found some nice looking ones like that. Was just confirming what you guys used. So basically a fuel check valve will work. 3/8" is the size hoses I need? I will be replacing all hoses under the hood.

 

[1990TSIAWDTALON]

Yes sir!

 

[USMCGSX]

I wish I would have known about the ones Marty linked before I went with a Radium PCV unit.
A lot of the fuel check valves have 3-5 psi cracking pressure ratings. I was not entirely sure if that would cause any cruising/low vacuum problems or not.
The Radium pcv has cracking pressure of 0.3 psi, not to mention it also threaded straight into the 10AN port on the can.
Just another option.