1G Catch can with AN lines

[Jiggalude]

Alrighty so after about an hour of searching I'm still not sure what to do. I'm making a catch can with -6an lines and stainless steel hosing. It will be vented with a small filter on top. My question is, do I need a check valve, and if so, where do I get one that will work with AN fittings?

 

[thejollyrancher]

How are you plumbing the catch can? You do not need a check valve. You only need one between a line that is going to your valve cover from a pressurized area, e.g. your PVC setup.

 

[Jiggalude]

The feed is coming from the old pcv port, running to the catch can and back to the vent hole that is on the side of the valve cover. I've found a AN check valve from Russell on eBay so I'm going to get that. The catch can does have a breather filter on top since I no longer have the intake in the loop.