Replacement rubber O-ring for 288C

Where do you guys source them, GPA?

Anyone have the "exact" measurements for it? Maybe I can source them locally.

Thanks!

Abe

There are 2 different ones, thin for flat horn flange, thick for recessed flange. Call GPA and get the right ones, O-rings will likely be rounded corners.

Yes call Bill he has them I bought a bunch of them.. He will send you a hardware package with studs,nuts,washers and the correct O-rings if you want or just the rings.....

Thank you very much OG, and AB!:)