SharkBite 50' White PEX Coil Pipe For Hot/Cold Water. It is used with 1/2" Quick Connect & Brass Pex Insert Fittings. W Type B Burst Pex Pipe Rated 1,100 PSI At 73 Degrees Fahrenheit, 375 PSI At 180 Degrees Fahrenheit. Type B Silane Method Pex Has More Anti-Oxidants & Thermal Stabilizers Which Is Critical For Chlorine Ratings & Recirculation Systems. Type A,B,C Are European System Designations Not Rating/Grading System For Pex. Do Not Use Duct Tape, Pipe Dope, Threading Compound, Mineral/Linseed Oil. Support Pipe Every 30" Vertically & Horizontally. Protect Pipe When Entering/Exiting Slab Or Walls. Do Not Kink Or Expose To Sunlight. Minimum Clearance To Water Heaters, Boilers, Wood Burning Appliances 18", Recessed Lights 12", Gas Appliance Vents 6". NSF-61 FDA, CSA/ASTM, UPC Listed/Approved. 25 Year Warranty Even When Used With Other Manufacturers ASTM SDR-9 Certified Fittings. Covers Materials, Labor & Is Not Pro-Rated.