Valuebrew has an exclusive color coded option for keg post o-rings.  Blue and Green.  These are sized for ball lock kegs (although there is a workaround for pin lock kegs, see pin lock section below).  You can use these however you’d like, but the idea is to color code you keg posts for easy identification.  They recommend Blue for Beer and Green for Gas.

Installed on the keg postsBlue for Beer/Liquid Out InstalledGreen for Gas In Installed.  A Note on Gas O-rings I am quick to replace gas o-rings.  A leak at the post is particularly difficult to test for.  I have lost multiple tanks of CO2 before learning this lesson.  In bulk, these are cheap, replace them liberally.  My suggestion is every other keg.The full set of o-rings I used to rebuild this keg.  Lid, Custom Posts, Dip Tube and Universal Poppets.  See: Food Safe Keg O-Rings in Bulk via Valuebrew

This write-up is part of my post on rebuilding kegs – Jump To This Section – If you look through the post you’ll see just how good the keg looks at the end.

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Make sure the components you use are compatible and rated for your intended application.  Contact manufacturer with questions about suitability or a specific application.  Always read and follow manufacturer directions. top:rebuildkeglnksto lnksto:kegrebuild rp:lnksccposts