1/2" x 1/4", Lead Free, Compression Angle Stop, Sharkbite Push Fit Fittings For Use With Copper Tubing Copper Tube Size, CPVC & Pex With Integral Tube Liner Included, Constructed Of DZR Brass, Certified To 200 PSI & 200 Degrees Fahrenheit,Design Certified To ASSE1061/NSF61 Standards, Meets UPC, IPC & CUPC Requirements, Fittings Are Listed With IAPMO & Are Certified For Use On Potable & Hydronic Water Distribution, Certified For Underground Applications & As A Manufactured Joint Without The Need For Access Panels, Lead Free Compliant To Federal Law 111-380.