Fernco® Repair Coupling, Strong Back Flexible, Series: 1055 RC, Fitting/Connector Type: Coupling, 4 in Nominal, Asbestos Cement Fiber/Ductile Iron, 3.96 in Length, 4.3 psi Tested, Flexible PVC, -30 to 140 deg F, 4.76 in ID x 5.46 in OD
Designed for resistance to heavy earth loads and shear forces, while providing improved pipe alignment.