Ring Flange Gasket, Gasket Material SBR, For Pipe Size 3 in, Color Black, Inside Diameter 3 1/2 in, Minimum Operating Temperature -40 Degrees F, Maximum Operating Temperature 140 Degrees F, Outside Diameter 4 in, Thickness 1/4 in, Gasket Type Ring Gasket, Metal Detectable Gasket No, Included Fasteners Not Applicable, Includes Mounting Hardware No, X-Ray Detectable Not Applicable, Standards ASTM, FDA Approved No