Hewai PE-Rt Single Layer Pipes for Under Floor Heating, Home and Commercial Application. 50-Year Warranty: Comprehensive warranty coverage for 50 years under normal operating conditions. Oxygen Barrier Technology: EVOH layer prevents oxygen ingress, corrosion, and microbial growth for system longevity. High Production Capacity: Advanced high-speed extrusion equipment capable of producing 300,000 meters daily. Premium Raw Materials: Sourced from top global suppliers including Dow, Mitsui, SK, LG, and Lyondellbasell. Full System Guarantee: In-house production of pipes and fittings ensures complete system compatibility and reliability. Strict Quality Control: 100% visual and functional inspection with constant online monitoring of production parameters. Customization Options: Flexible customization available from samples, designs, and minor adjustments. Free Sample Availability: Free testing samples provided upon request for customer verification.