5/8" EPDM Rubber Water Meter Gasket, 1/8" Thick, for 5/8" x 1/2" meter – Utility Technologies
3/4" EPDM Rubber Water Meter Gasket, 1/4" EXTRA THICK, for 5/8" x 3/4" – Utility Technologies
Black Rubber Washer Large Rubber Washers 1 1/4" OD x 3/4" ID x 1/8" Thickness - EPDM Rubber Washers Flat Rubber Washers Round Rubber Washers (Pack of 12): Amazon.com: Industrial & Scientific
Amazon.com: Black Rubber Washer 3/4" OD x 5/16" ID x 1/16" Thickness - EPDM Rubber Washers Flat Rubber Washers Round Rubber Washers (12) : Industrial & Scientific