Pexflow PSFA1238-NL Female Sweat Adapter X Pex Barb Pipe Fitting 1/2" X 3/8" Brass Approved By UPC, NSF, And CSA Use with: Pex tubing in accordance with ASTM F876 & F947 Material: Forged No-Lead Brass 1/2 Female Sweat X 3/8 Pex Barb Brass Adapter - Lead Free NSF, UPC and CSA approved and manufactured to ASTM standard F1807