The Solvent Weld Straight Coupler White 40mm is a robust plastic fitting designed to connect two lengths of 40mm waste pipe in a continuous, straight line. Manufactured from high-impact PVC-U, this white coupler provides a secure and permanent joining solution for larger domestic waste runs, such as those servicing kitchen sinks, dishwashers, washing machines, and bath outlets.
 
Featuring solvent weld sockets on both ends, the fitting relies on solvent cement to chemically melt and fuse the plastic surfaces together. This chemical welding process creates a single, unified joint that is completely watertight and airtight, preventing liquid leaks and stopping foul drainage odors from escaping into the living area.
 
Ideal for both concealed pipe chases and visible waste installations, its clean white finish coordinates neatly with standard 40mm plastic pipework. Resistant to high-temperature hot water discharge, thermal movement, and standard chemical drain cleaners, this coupler offers professional plumbers and home improvers a long-lasting, heavy-duty inline connection.