Thanks, I found those too but want just the o-ring in a 25 pack to reduce cost.
Install Tip: You can use a piece of 1/2 sq steel tubing under the rolled edge of the keg as a lever to push on a 1/2 PVC end cap to compress the o-ring when installing. a 2.5 foot long lever can be held by a helper while you install the snap ring.
Edit: I measured everything and the only one that comes close is #5018T261 1 3/4 ID X 2 in OD x .125 section from McMaster.com.
Fermentor 1: Bill's House Ale II, Fermentor 2: German Helles, Fermentor 3: Bill's Schworzbier (Black Bier)
Tap 1: Bill's House Ale II, Tap 2: German Hefewizen, Tap 3: Nut Brown Ale
Future Brews: Stone IPA Clone, Blonde Ale, Budvar Clone, Newcastle Clone
New toy: Blichmann 27 gallon fermentor
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