Flair-It PEX Pipe Type A Made of the finest cross-linked polyethylene PEX . Flexibility that allows fast installation, bends easily around corners. Withstands freezing, gets stronger as the temperature gets colder. Tubing has been tested to withstand freezing down to 95 deg. F. Winterizes easily can be used with most anti-freeze solutions. Repairs easily, should ever a frozen tube need thawing, simply apply heat, using a heat gun, the flexible tubing will not weaken from the applied heat. Type A PEX. Maximum working pressure 160 psi pounds per square inch at 73.4 F degree Fahrenheit , 100 psi at 180 F, 80 psi at 200 F. Color White, Size 1/2 In. x 100 Ft., Type PEX-A, Outside Diameter 5/8 In., Pressure Rating 80 psi, Pkg Qty 1