Fernco® Repair Coupling, Strong Back, Series: 5051 RC, Fitting/Connector Type: Coupling, 4 in Nominal, Asbestos Cement/Ductile Iron x Cast Iron/Plastic, 3.94 in Length, 4.3 psi, 60 Duro Shore A Flexible PVC, -30 to 140 deg F, 5.41 in OD, Domestic
Designed for resistance to heavy earth loads and shear forces, while providing improved pipe alignment.