Push connect valve 1,cUPC, CE, Patent approved 2,Metric ... EPDMGrab Ring: Stainless SteelPlastic: POM (Dupont material) Introduction of push fit fittings/valves : 1, Made of brass CW602N; CW617N ... , Large flow 3,Scope of Application Pipe fittings,Push connect plumbing fittings. Connect with CPVC,PEX,COPPER... ... enjoy customers'good reputation at home and abroad. Push connect valve(CE & pattent approved)