Product Information Size: 5" Select a Product Part NumberDescriptionMaterialIDODThickness 500GTCABUStandardBuna-N3-7/8"5-1/4"1/8" 500GTCAVITHKStandardFKM3-7/8"5-5/16"3/16" 500GTCATVPTFE EnvelopePTFE with FKM filler3-13/16"5-1/4"3/16" 500GTCAVIStandardFKM3-7/8"5-1/4"1/8" 500GTCABFStandardFuel Grade Buna3-7/8"5-1/4"1/8" G9Old StyleLeather3-1/2"5-1/4"3/16" 500GTCATFPTFE EnvelopePTFE with Buna-N filler3-13/16"5-1/4"3/16"