Overflow Pipe & Fittings

Overflow pipe and fittings are designed for smaller, low volume drainage jobs, including overflow and condensate connections. The 21.5mm pipework is kept separate from standard 32mm, 40mm and 50mm waste systems, making it suitable where a more compact run is needed.

Use 3m pipe lengths to form the main route, with straight couplings joining sections together. Choose 90° bends for tighter changes in direction, 135° bends for a gentler turn and tees where an extra branch needs to join the overflow system.

Pipe reducers allow 21.5mm overflow pipe to connect into larger 32mm or 40mm waste pipe. This makes it easier to bring a smaller overflow or condensate run into the main drainage system while keeping the installation neat and properly connected.