Ring Flange Gasket Gasket Material Inorganic Fiber Insert Material None For Pipe Size 3/4 in For Flange ANSI Class 150 Binder Material Buna-N Color Gray Inside Diameter 1 1/16 in Minimum Operating Temperature -100 Degrees F Maximum Operating Temperature 800 Degrees F Outside Diameter 2 1/4 in Thickness 1/8 in Gasket Type Ring Gasket Metal Detectable Gasket No Included Fasteners Not Applicable Hardness Not Rated Includes Mounting Hardware No X-Ray Detectable No