The 110mm Push-fit Soil 87.5-degree Triple Socket Branch (Black, Ref: SPB0009) is a heavy-duty uPVC soil and vent fitting designed to connect a secondary 110mm branch line into a main 110mm soil stack. Set at an 87.5-degree angle (often designated as 92.5-degree), it provides the necessary 2.5-degree continuous fall to maintain efficient, self-cleansing gravity flow while preventing backflow into connecting sanitary fixtures.
 
Featuring a triple-socket configuration, all three entry points contain integrated, pre-lubricated rubber ring seals that create a secure, watertight, and gastight push-fit joint without requiring solvent weld adhesives. This dry push-fit system speeds up installation and accommodates natural thermal expansion and contraction along the soil run.
 
Manufactured from durable, high-impact, UV-stabilized uPVC to UK standards (BS EN 1329-1), the black finish is specially suited for external soil and vent stacks exposed to sunlight, as well as high-visibility internal installations. Its standard 110mm size ensures universal compatibility with standard plain-ended and socketed soil systems in domestic and commercial drainage applications.