White 90° Overflow Knuckle Bend – 21.5mm

The White 90° Overflow Knuckle Bend (21.5mm) is used where an overflow pipe needs to turn cleanly around corners without restricting water flow. It is commonly fitted in domestic overflow wastewater systems connected to toilet cisterns, cold-water storage tanks, and heating appliances.

Manufactured from durable uPVC, this knuckle bend maintains a smooth internal profile to support consistent drainage while reducing the risk of water backing up at the joint. Its rigid construction ensures the angle remains fixed once installed, helping achieve a tidy and professional finish.

Finished in white, it matches standard 21.5mm overflow pipes and fittings, allowing for a uniform appearance throughout the installation. This fitting is part of the Overflow Wastewater System 21.5mm, within the wider Wastewater category, and is suitable for both internal and external domestic use.

Specification Table