The Marley SA421 110mm x 40mm Push-Fit Soil Boss Connector is designed to connect 40mm waste pipe to a 110mm Marley soil pipe system. The 87.5° boss connector features 40mm push-fit connections and is manufactured from durable grey PVC-U for straightforward installation in soil and waste drainage systems.
Suitable for domestic and commercial drainage applications, the Marley SA421 provides a practical way to create a 40mm waste connection into a 110mm soil stack.
The Polypipe SU420W is a 110mm double branch fitting with a 92½° angle, designed exclusively for vertical installation in soil and vent systems. Constructed from robust PVCu, it provides reliable and leak-free connections for multiple waste outlets. Ideal for domestic plumbing, this fitting ensures efficient flow and compliance with BS EN 1329-1 and BS 4514 standards. Suitable for push-fit or solvent weld connections, it guarantees secure, long-lasting performance in vertical soil pipe applications.