Flexible PVC Plastic Reinforced Screw Pump Suction Spiral Hose Suction Sewage Pipe. Spiral Reinforced Structure: High-strength PVC helix ribbed skeleton ensures stability under high negative pressure and impact. Super Pressure Bearing: Withstands both positive and negative pressure, suitable for high-pressure and vacuum scenarios. Long Service Life: UV resistant and anti-aging; can be used outdoors for over 5 years without cracking. Efficient Quiet Transmission: Smooth inner wall reduces flow resistance by 30%; noise reduced by 45% compared to traditional hoses. Lightweight & Durable: Weight is only 1/5 of metal pipes, significantly reducing transportation and installation costs. Customizable Dimensions: ID 14mm-305mm, wall thickness 2mm-12mm, and length 10-50meters are fully customizable. Eco-Friendly Material: Made from non-toxic, odorless PVC resin; supports recycling and reuse without harmful substance release.