Flange Gasket, Full Face, 2 in Pipe Size, 6 in Outside Dia., Bolt Holes 4, 2 3/8 in Inside Dia., Metal Detectable No, Material of Construction Flexible Graphite with 316 SS Insert, 1/16 in Thickness, -400 Degrees to 975 Degrees Temp. Range (F), Color Dark Gray, Standards ASME B16.21