20mm MDPE Blue Pipe Coil - 25m Dimensions Diameter: 20mm Length: 25m Description Brett Martins Twinwall surface water pipe and fittings, available in 150mm “ 600mm dias, can be used in storm and land drainage applications including highway, agricultural, rail, airport and landfill drainage. Twinwall Pipe and Fittings in 150mm“600mm dias. Manufactured from high density polyethylene. BBA Approved Twinwall Fittings (Certificate Number 10/H168) in the 150mm“300mm dia range. Rotationally moulded fittings with accurate and consistent internal socket diameters and smooth bores. Fabricated fittings in the 375mm“600mm ranges. Resistant to naturally occurring chemicals. Easier handling “ weighing 94% lighter than concrete. Lightweight and Robust. Always lubricate joints during installation.