Fit regulators that use a fiber (not rubber) washer. These fit Cornelius, Tap-Rite, and Micromatic Regulators. Should be re-placed with every tank recharge. ¾" in diameter. Bag of 100.
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worth it
I've never had a problem with these, but my local co2 vendor switched to nylon washers which were more expensive and leaked easier. these are more crush proof and provide a better seal in my opinion
store owner
great prices & service fast ship