ZCF-PX Series Large Diameter Waterproof PTFE Material Anticorrosive Solenoid Valve Anti-corrosion material The shell material: CPVC The lining, piston, and valve stem material: PTFE Valve Body & Flow Marking Fluid direction indicated by arrow: DN32~50 Comes with wire: Easy to install https://www.nbmingyuanpc.com/product/zcf-series-anticorrosion-solenoid-valves/zcfpx-series-large-diameter-waterproof-ptfe-material-anticorrosive-solenoid-valve.html