Fernco® Repair Coupling, Strong Back Flexible, Series: 1051 RC, Fitting/Connector Type: Coupling, 12 in Nominal, Asbestos Cement Fiber/Ductile Iron x Cast Iron/Plastic, 10 in Length, 4.3 psi Tested, Flexible PVC, -30 to 140 deg F
Designed for resistance to heavy earth loads and shear forces, while providing improved pipe alignment.