Fernco® Repair Coupling, Strong Back, Series: 5056 RC, Fitting/Connector Type: Coupling, 4 in Nominal, Cast Iron/Plastic/Steel x Cast Iron/Plastic/Steel, 0.32 in Thickness, 4.02 in Length, 4.3 psi, 60 Duro Shore A Flexible PVC, -30 to 140 deg F, 4.58 in ID x 5.22 in OD, Domestic
Designed for resistance to heavy earth loads and shear forces, while providing improved pipe alignment.