Victaulic® Flexible Coupling With Grade EHP EPDM Gasket, Style 177N Series, Coupling Fitting, Iron, Material Construction: Iron, Finish: Hot-Dipped Galvanized, 1000 psi, 2.375 in OD x 6.38 in L x 2.13 in H, -30 to 250 deg F, Additional Information: ASTM A536 Grade 65-45-12 Material Standard