SharkBite U860W50 Type B Pipe Tubing, 1/2 Inch x 50 FeetCross linked polyethylene pipe approved for use in residential and commercial installations. Has the flexibility to bend around corners, reducing the number of connection points needed. Highlights: Color: White Material: PEX Inside Diameter: 1 2 inch Length: 50 feet Maximum Pressure: 80 psi Maximum Temperature: 140 degree F IAPMO Certified: Yes NSF Listed: Yes Coiled: Yes Outside Diameter: 5 8 inch Pipe expands and contracts as water freezes and thaws