Full Face Flange Gasket, Gasket Material EPDM, Insert Material None, For Pipe Size 3 1/2 in, For Flange ANSI Class 150, Binder Material None, Color Black, Inside Diameter 4 in, Minimum Operating Temperature -30 Degrees F, Maximum Operating Temperature 250 Degrees F, Outside Diameter 8 1/2 in, Thickness 1/16 in, Number of Bolt Holes 8, Bolt Hole Diameter 3/4 in, Gasket Type Full-Face Gasket, Metal Detectable Gasket No, Included Fasteners Not Applicable, Hardness Shore 60A