Everflow EPRC1238-NL 1/2 Inch X 3/8 Inch Lead Free Brass Straight Coupling with Pex Ends, Barb Connection, Compatible with PEX Pipe, Low-Cost plumbing Connection System, Durability, Easy to Install Reducing Coupling PEX X PEX Lead Free DZR Brass Construction for Durability and Reliability Fittings Work with Crimp Ring or Clamp Connection Methods, and uses Cinch tool or Crimp tool. Low-Cost plumbing Connection System; Barb Connection; Compatible with PEX Pipe Rated to 200F and 200 psi; No Flames, Glue, Fluxes, or Solvents Needed NSF Listed; Meets UPC, IPC and cUPC requirements