RETROFIT O-RING for ADAPTER 04C03365 ONLY
The current production run of Adapter - Cornelius Keg Posts 1/4"MPT x 19/32"-18 catalog #: 04C03365 has a defect whereby the channel that seats the O-ring is too deep. This means the factory installed O-ring does not make a tight seal within the Tank Plugs. THIS O-RING CORRECTS THAT PROBLEM.
If you have an Adapter that does not seal, this is the fix.
All 04C03365 sold after 10/17/14 come with the retrofit seal.
DO NOT USE THIS SEAL if your original / current seal was OK, size-wise. For that replacement use seal # 07E04383ih.