Introducing the Fernco 5004-44RC 4'' X 4'' RC shielded couplings, the ultimate solution for demanding pipe connections. Specifically designed to effortlessly connect 4'' to 4'' Concrete pipes, this coupling accommodates pipe outer diameters ranging from 5.36''-5.6'' on one end and 5.36''-5.6'' on the other end, guaranteeing a flexible fit for various applications. Built to withstand challenging conditions, including slight off-set in host pipes, these shielded couplings offer unparalleled adaptability and resilience. Engineered for below-ground excellence, Fernco RC pipe couplings resist heavy earth loads and shear forces, ensuring secure connections that last.Trusted by professionals worldwide, Fernco is the preferred choice for waste, drain, and vent applications. Plumbers, contractors, and municipalities rely on Fernco couplings for their unmatched performance and peace of mind. Fernco couplings deliver a permanent, leak-proof solution for sewer, drain, waste, and vent piping needs, meeting stringent requirements and standards with ease. Backed by industry-leading specs and codes compliance, including ASTM D 5926, C 1173 CSA B602, and UPC Approval, Fernco couplings ensure reliability above and below ground. With a maximum test pressure of 4.3 PSI, these couplings are designed for waste, drain and vent applications. Crafted with pride in the USA for over 60 years, Fernco's legacy of American craftsmanship shines through in every product.