Victaulic® Flexible Coupling With Grade T Nitrile Gasket, Style 75 Series, Coupling Fitting, Iron, Material Construction: Iron, Finish: Enamel-Coated, 500 psi, 3.5 in OD x 7 in L x 1.88 in H, -20 to 180 deg F, Additional Information: ASTM A536 Grade 65-45-12 Material Standard