Choose the couplings that the pros use for your next drain, waste or vent project. The Fernco 1001-66 flexible PVC coupling quickly connects Clay pipes. 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. 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.