Full Face Flange Gasket Gasket Material EPDM Insert Material PTFE For Pipe Size 12 in For Flange ANSI Class 150 Binder Material None Color Black Inside Diameter 12 3/4 in Minimum Operating Temperature -40 Degrees F Maximum Operating Temperature 250 Degrees F Outside Diameter 18 15/16 in Thickness 5/64 in Number of Bolt Holes 12 Bolt Hole Diameter 1 in Gasket Type Full-Face Gasket Metal Detectable Gasket No Included Fasteners Not Applicable Hardness Shore 95 to 100 A