Sterling Seal and Supply (STCC) OREPD278 O-Ring, Number-278 Standard is Good for Steam (400 Degree F), Hot Water, Sunlight, Silicone Oils and Greases, EPDM/EPR/EP, 12" ID, 12-1/4" OD: Amazon.com: Industrial & Scientific
O Ring CS 1mm ID 29mm OD 31mm Material With Silicone VMQ NBR FKM EPDM ORing Seal Gasket _ - AliExpress Mobile
What's the Difference Between Buna vs Viton O-rings?
High Temperature Resistant Fluorine Rubber O Ring - China Fluoro Rubber FKM Rubber O Ring, Fluoro Viton FKM Ffkm Rubber O Rings | Made-in-China.com