RELIABLE PEX MATERIAL- Color: Red & Blue; Nominal Diameter: 1/2', Total Length: 300 ft. Outside Diameter: 5/8'; Inner Diameter: 1/2'; Keep quick & smooth hot/cold water flows. Made of PEX material, non-toxic, crack-proof, leak-proof. Perfect for potable water or radiant floor water use. ROBUST O2 RESISTANCE- Unique EVOH layer, stop O2 into the tube, protect metal components from corrosion. This non-broken 1/2' PEX tube can tackle different weather circumstances, no matter the high or low temperature, to ensure the integrity and safer use for longer life expectancy. PREMIUM FLEXIBILITY- Min.5' bending radius, easy to bend for different ground situation. Compatible water temperature: -40 to 95/-40 to 203. Big pressure capacity: 80psi @ 200, 100psi @ 180, 160psi @ 73. Thus, to ensure its good temperature resistance, crack- & leakage-proof