【PREMIUM FLEXIBILITY】- Min.5" bending radius, easy to bend for different ground situation. Big pressure capacity: 80psi @ 200℉, 100psi @ 180℉, 160psi @ 73℉. Thus to ensure its good temperature resistant, crack- & leakage-proof. 【ROBUST O2 RESISTANT】- Unique EVOH layer, stop O2 into the tube, protect metal components. Heating system's service time can be greatly lengthened. Smooth inner pipe, anti- scaling quality, increase heat dissipation efficiency & speed for energy-saving. 【EFFORTLESS INSTALLATION】- Compatible with different connection system & floor type, such as: Crimp connection system (crimp tool + crimp rings + crimp fittings); Cinch (clamp) connection system (cinch tool + St. steel clamps + crimp fittings); Press system (by Viega); Compression PEX Fittings. 【RELIABLE MATERIAL】- Type: Oxygen-Barrier; Color: Red; Nominal Diameter: 1/2"; Total Length: 900ft. Outside Diameter: 0.625"; Inner Diameter: 0.475"; Tube Thickness: 0.07"; Keep quick & constant hot/cold water flows. Made of PEX material, crack-resistant, leak-proof. Perfect for potable water or radiant floor water use. 【DIVERSE USE SCENARIO】- Suit for home & commercial use, like: radiant floor heat system, solar water heater system, central air-conditioning piping system etc. Structural concrete slabs, Non-structural slabs, Staple-up (between joists) radiant floor heating with and without heat transfer plates, "Sandwich" type radiant heating (between sub floor and finished floor), Snow & ice melting systems etc.