If you are using any 50L Keg coupler (A-Type, D-Type ect.) and want to be versatile in what kegs you can get, then we would strongly suggest converting your couplers to 5/8" Ball lock posts, to use ball lock disconnects on your coupler to change them over quickly. 

This is for gas only, the identifying difference is engraved band around the post. A Gas Ball lock will only fit on a gas post.

Features:

– 304 Stainless Steel

– Complete plug and play – Complete with seals, poppet & spring