PEX TUBING: Flexible water pipe tubing for potable water distribution systems; Chlorine and UV resistant; Minimum working temperature 33 degrees Fahrenheit at 160 PSI and maximum working temperature 200 degrees Fahrenheit at 80 PSI; FLEXIBLE PEX PIPE: Expands and contracts with temperature changes and is freeze resistant; PUSH-TO-CONNECT: Use with SharkBite plumbing fittings or plastic barb and brass barb fittings using PEX crimp tool or clamp connections; RESIDENTIAL and COMMERCIAL: All SharkBite PEX tubing meets the same standards for commercial and residential plumbing applications; MADE IN THE USA: Manufactured and tested in the USA. CUT. PUSH. DONE. SharkBite PEX Tubing is an excellent flexible water pipe tubing product for plumbing systems. PEX tubing is flexible, easy to install, and minimizes noise caused by a water hammer. Designed for use on hot and cold potable water lines, Blue PEX tubing is commonly used for hot water lines for identification purposes. The SharkBite Connection System makes any plumbing project fast and easy thanks to unique push-to-connect technology. When you insert a pipe into a SharkBite quick-connect fitting, the fitting's stainless-steel teeth bite down and grip the pipe, while its special O-ring compresses to create a watertight seal.