Drainage Universal Rainwater Adaptor

Drainage universal rainwater adaptor provides a transition between various rainwater downpipe sizes and standard 110mm underground drainage pipes. The tapered and stepped design allows compatibility with multiple round or square rainwater pipes without requiring bespoke fittings. Once inserted, the adaptor ensures secure, watertight discharge of roof runoff into foul or surface water drainage systems.

High-strength uPVC offers durability against weather exposure, soil moisture and chemical attack, making it suitable for long-term external and below-ground use. Ideal for linking roof drainage systems to underground runs with minimal installation time.

Installation Guide:

• Identify downpipe size and cut to a clean, square end.

• Insert rainwater downpipe into the appropriate step of the adaptor.

• Fit the lower spigot into the 110mm underground socket or coupling.

• Apply lubricant if needed to ensure proper seating.

• Confirm vertical alignment and ensure no gaps or rocking.

• Backfill around underground connection point with granular material.