Standard Size 110 mm diameter is the standard for domestic underground drainage in the UK and many other regions. Usage Provides an efficient means of waste water drainage and foul discharge from above ground drainage systems. Material Manufactured in PVC-U to give a strong durable product which is lightweight and is resistant to corrosion and chemicals. Fittings Comprehensive range of fittings to suit most installation. Integrates with all FloPlast above and below ground drainage systems. Jointing Push-Fit joint through an innovative designed seal and snap cap system. Compliance Conforms to BS EN 1401-1 standards in the UK.