Flow Management by NDS® Pro-Span™ Coupling compression fittings are dependable, versatile, economical and corrosion free. They include CTS couplings, tees and adapters. May be selected in a wide range of sizes and materials in including CPVC. Save time and money by eliminating precise cutting and threading galvanized or steel pipe Tap into existing lines and connect do different materials such as steel, plastic, copper or brass Corrosion free above or below ground For repair of a broken pipe, our Pro-Span expansion repair couplings have a patented locking feature that makes the repair process easier. Additional product benefits include a dual-seal design to prevent leaking and a glue-well to prevent excess glue from sticking the repair coupling together.