CO2 Check Valves

If anyone is building a kegerator or planning one, save yourself some work and money in the long run and put check valves on all of your CO2 lines. I didn't when I built mine a couple years ago, and I'm finally going to install them after I get done overhauling the CO2 system.

I'm about to pull the trigger on 6 from McMaster-Carr, and just wanted to know any particular ones you guys may have and likes/dislikes.

Here's what I'm getting:

7768K26 Brass Spring-Loaded Piston Check Valve 1/4" NPT Male X 1/4" NPT Female, Buna-N Seat $8.74 Each

The male end will go right into the valves on the manifold, and the push connect fittings for all my gas lines will fit right into the female end.