' Flange Gasket, Full Face Gasket, 7-1/2 In. Outside Dia., Bolt Holes 4, 3-1/2 In. Inside Dia., 1/8 In. Thickness, Material of Construction SBR Blend, 150 Max. Pressure (PSI), -20 To 180 Temp. Range (F), Color Red, Metal Detectable No, Standards ANSI Sized To Fit 150 lb Flat Face Flanges '