Cross-linked polyethylene tubing for hot/cold tubing. Will handle all normal temperatures and pressures for residential potable water systems. For residential, commercial, and industrial applications. It not only meets SDR9, ASTM, F-876, F-877 standards, but goes well beyond these requirements. Nothing sticks to it including mineral buildup, rust, corrosion, and electrolysis. Can be connected to galvanized, copper, polybutylene, and CPVC systems with standard Zurn fittings. Crimp and thread connections: no solvents, bonding agents, glues, flame, solder, flux or gas used. “No sweat” plumbing method reduces plumbing costs. Fast, efficient installations. Subject to ultraviolet deterioration and must not be exposed to sunlight. Pressure ratings: 160 PSI at 73°F, 100 PSI at 180°F, and 80 PSI at 200°F. Copper tube sizes.