The ApolloPEX 3/4 in. Brass PEX Barb x 1/2 in. Female Pipe Thread Adapter 90 Drop-Ear Elbow is simple to install and is designed for the installation of tub and shower outlets in most applications. ApolloPEX barb fittings are a key component of the most economical potable water piping systems. Also capable of integration into hydronic heating systems, ApolloPEX elbows 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 FNPT connection for PEX plumbing systems Rated to 200F and 200 psi Works well to supply high flow shower heads ASTM F1807