SharkBite 23037-0000LFA Straight Stop Valve 1/2 inch x 3/8 inch, Compression Fitting, Water Valve Shut Off, Push-to-Connect, PEX, Copper, CPVC, PE-RT INSTALLS IN SECONDS: 1/2 inch push-fit x 3/8 inch threaded compression straight shut off valve requires no special tools, no soldering, no crimping or glue. Just push to create a watertight seal PERFORMANCE: Rated to 200 psi and 200 Degree F. Use in Potable water and Hydronic Heating applications COPPER, PEX, CPVC, PE-RT: SharkBite hose connector inlet fits Copper, PEX, CPVC and PE-RT Pipe and connects them in any combination QUALITY: Only SharkBites quality and performance is field-proven with more than 550 million connections. SharkBite is the only push-to-connect brand that can ensure a clean, leak-free connection RESIDENTIAL and COMMERCIAL: All SharkBite fittings meet the same standards for commercial and residential plumbing applications