.5 inch Rigid Copper Tube Size x 25 feet , White, Pex Coil, For Hot-Cold Water, Use With .5 inch Quick Connect and Brass Pex Insert Fittings, W Type B Burst Pex Pipe Rated 1100 PSI At 73 Degree Fahrenheit, 375 PSI At 180 Degree Fahrenheit, Type B Silane Method Pex Has More Anti-Oxidants and Thermal Stabilizers Which Is Critical For Chlorine Ratings and 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 inch Vertically and 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 inch , Recessed Lights 12 inch , Gas Appliance Vents 6 inch , 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 and Is Not Pro-Rated.