The ApolloPEX 3/4 in. Brass PEX x Female Solder 90 degree Elbow is simple to install and is designed as an economical solution for the transition from copper tubing to PEX tubing. ApolloPEX barb fittings are a key component of the most economical potable water piping systems. Also capable of integration into hydronic heating systems, ApolloPEX sweat adapters can be secured into place using copper crimps, stainless steel pinch clamps or stainless steel crimp sleeves (all sold separately). The ApolloPEX system is a comprehensive piping system comprised of brass fittings, poly alloy fittings, manifolds, valves, fasteners, tools and tubing designed for implementation in water delivery systems, simple or complex. Features: Constructed of lead free dezincification resistant (DZR) brass for superior reliability and strength Most economical piping system available Compatible with PEX pipe Meets UPC, IPC and cUPC standard Can secured in place using copper crimps, stainless steel pinch clamps or stainless steel crimp sleeves NSF listed Barb x female copper sweat connection for PEX plumbing systems Maximum working pressure of 200 psi and maximum temperature of 200 degree F