Full Face Flange Gasket, Gasket Material FKM, Insert Material Not Applicable, For Pipe Size 2 1/2 in, For Flange ANSI Class 150, Color Black, Inside Diameter 2 7/8 in, Minimum Operating Temperature -20 Degrees F, Maximum Operating Temperature 450 Degrees F, Outside Diameter 7 in, Thickness 1/8 in, Number of Bolt Holes 4, Bolt Hole Diameter 3/4 in, Gasket Type Full-Face Gasket, Metal Detectable Gasket No, Hardness Not Rated, Includes Mounting Hardware No, For Fluid Type Chemicals