Sterling Seal OREPD368x250 O-Ring, Number-368 Standard is Good for Steam (400 Degree F), Hot Water, Sunlight, Silicone Oils and Greases, EPDM/EPR/EP, 7-3/4" ID, 8-1/8" OD (Pack of 250): Amazon.com: Industrial & Scientific
10cc Rubber EPR Black O-ring Techcon Adhesive Dispensing Ltd P3017EPK
Ethylene Propylene 70 Durometer O-Ring, General Purpose, Automotive Coolant (E0803-70) | Parker NA