Matco-Norca now carries lead free cold expansion PEX frost-proof sillcock valves for outdoor use in lengths ranging from 4 to 14 inches. These 212PXCELF sillcocks have an anti-siphon feature to prevent water syphoning to protect potable water systems and are frost-proof to prevent freezing. They connect to 1/2-inch ASTM F1960 PEX systems. They are UPC approved and also conform to ASSE 1019, ASTM F1960, CSA and NSF61 standards. They have a temperature rating of 125 PSI non-shock and a temperature rating of 180 degrees Fahrenheit.