The 110mm Push-fit Soil Strap-On Boss Open (Grey, Ref: SSLG0031) is a versatile uPVC soil stack fitting designed to allow a smaller waste pipe entry (such as 32mm, 40mm, or 50mm) to be retrofitted directly into an existing 110mm soil and vent pipe without cutting out a full section of the main stack.
 
It features a curved saddle profile that clamps securely around the circumference of a standard 110mm soil pipe over a pre-drilled hole (typically cut using a 54mm hole saw). The open boss neck features a pre-formed socket with an integrated rubber ring seal, allowing for a quick, dry, push-fit connection when combined with a corresponding push-fit rubber boss adaptor.
 
Manufactured from durable, weather-resistant uPVC to UK standards (BS EN 1329-1), this fitting is suitable for both internal and external grey soil systems. It provides a simple, watertight solution for introducing waste runs from basins, sinks, washing machines, or shower tray wastes into a primary 110mm drainage line.