About This 【Lead Free Brass】- 1/2" Pex x 1/2" CPVC Transition Coupling are made of lead-free brass. They are certified with ASTM F1807 NSF/ANSI 61. 【Extra-Long Service Life】: Pex Fittings made of durable brass and they can be used for PEX pipes in plumbing jobs. and they resist corrosion, rust and high temperature (32℉—200℉).Reinforced Nylon material with high twisting force. 【Wide Applications】: Transitional Fitting Great for Joining CPVC and Pex Pipes Within Your Piping Systems.Great for hot or cold water distribution and and hydronic heating systems in your home, in warehouse or in RV. But NOT UPONOR/Wirsbo EXPANSION SYSTEM & PB TUBE. 【Quick Connection】: Pex Fittings compatible with Stainless Steel Pipe Clamp & Copper Crimp Ring Systems(Clamp rings are not included in this set.) 【Warm Tips】: NOT Compatible with UPONOR/Wirsbo EXPANSION SYSTEM & PB TUBE. ONLY for PEX B pipes. 【Package Include : 2 Pack 1/2" Pex x 1/2" CPVC Transition Adapter, 1 × Ziplock bag Overview Size : 1/2 Inch Material : Brass Brand : ORIANSE Color : Brass Item dimensions L x W x H : 0.95 x 0.95 x 1.99 inches Connector Type : Adapter Exterior Finish : Brass Item Weight : 0.06 Pounds Number of Pieces : 2 Manufacturer : ORIANSE