Fernco Flexible Elbows with Reducer bushings allow for up to 90-degree connections of all common household drain, waste and vent pipes without using special tools or fittings. Quickly connect pipes of varying sizes with the included Reducer Bushing by simply inserting the Bushing into the Elbow end. Installation is as easy as sliding the coupling on and torquing the stainless-steel bands down for a leak-proof connection. Before you grab the primer and glue - be sure and look for the right Fernco Coupling. This Fernco Qwik Elbow is compatible with Plastic (PVC, ABS, CPVC, Smooth Wall HDPE), Cast Iron or Steel Pipe for a watertight joint. For sewer and drain, waste and vent piping. Maximum working pressure: 4.3 PSI. Fernco couplings have been proudly manufactured in the USA since 1964 and are made of the highest quality elastomeric polyvinyl chloride and corrosion-resistant, rust-proof clamps. With a reputation for quality, innovation, and reliable performance, you can trust Fernco as the global leader in flexible plumbing couplings.