Ring Flange Gasket, Gasket Material FKM, Insert Material None, For Pipe Size 2 1/2 in, For Flange ANSI Class 150, Binder Material None, Color Black, Inside Diameter 2 7/8 in, Minimum Operating Temperature -20 Degrees F, Maximum Operating Temperature 450 Degrees F, Outside Diameter 4 7/8 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, For Fluid Type Not Applicable