Victaulic® Flexible Coupling With Grade T Nitrile Gasket, Style 77 Series, Coupling Fitting, Iron, Material Construction: Iron, Finish: Enamel-Coated, 1000 psi, 1.315 in OD x 4.12 in L x 1.75 in H, -20 to 180 deg F, Additional Information: ASTM A536 Grade 65-45-12 Material Standard