Ring Flange Gasket Gasket Material Aramid Insert Material None For Pipe Size 1 1/4 in For Flange ANSI Class 300 Binder Material Neoprene Color Gray Inside Diameter 1 21/32 in Minimum Operating Temperature -100 Degrees F Maximum Operating Temperature 400 Degrees F Outside Diameter 3 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