Sterling Seal OREPD444x250 O-Ring, Number-444 Standard is Good for Steam (400 Degree F), Hot Water, Sunlight, Silicone Oils and Greases, EPDM/EPR/EP, 7-3/4" ID, 8-1/4" OD (Pack of 250): Amazon.com: Industrial & Scientific
OEM EPDM O Ring Food Grade , Square Orings Seals Steam Resistance AS568