Triple Socket Branch 45° Y Shape Underground Fitting

Kalsi Group Triple Socket Branch 45° Y Shape Underground Fitting is a high-quality uPVC drainage junction engineered for gravity drainage and sewerage systems in residential, commercial, and civil applications. Part of the trusted Kalsi Aquaflow underground drainage range, this 110mm equal Y-branch allows two pipe runs to be merged into one — or a single run to be split into two — at a smooth 45° angle, reducing turbulence and the risk of blockages.

Key Features and Specifications

• Material: Unplasticised PVC (uPVC / PVC-U) — lightweight, corrosion-resistant, and chemical-resistant
• Diameter: 110mm (4 inch) — the standard size for domestic underground drainage in the UK
• Angle: 45° Y-shape (swept junction) for smooth, low-turbulence flow
• Sockets: Triple socket configuration — push-fit rubber-sealed ends on all three inlets/outlets
• Connection: Seal and snap push-fit technology; no specialist tools required
• Colour: Mid-brown terracotta — easily distinguishable from soil and waste pipes during installation
• Max installation depth: Up to 10 metres
• Standards: BS EN 1401-1 (PVCu non-pressure underground drainage and sewerage); BS EN ISO 9001:2008
• Building Regulations: Complies with The Building Regulations 1990 (England & Wales) and Building Standards (Scotland) Regulations 1990 Part M

Applications

• Domestic foul water and surface water drainage installations
• Connecting branch drain runs to main sewer lines
• New-build housing drainage systems and extensions
• Commercial and civil underground drainage networks
• Sewerage systems requiring a Y-junction or equal tee at 45°
• Use alongside inspection chambers, rodding points, and soakaway crates

Why Choose This Product

The Kalsi Aquaflow 110mm 45° triple socket branch is a proven, specification-grade fitting used by drainage contractors and builders across the UK. Its push-fit rubber-seal design delivers a fast, reliable joint without adhesive or specialist tools, saving time on site. The uPVC construction will not warp, rot, or corrode, ensuring long service life underground. Full compliance with BS EN 1401-1 and UK Building Regulations gives specifiers and installers complete confidence. Trade quantities are available, making it a practical choice for contractors and merchants alike.

Delivery in and Around London

We supply this Kalsi underground drainage fitting to trade and DIY customers across London and the South East. We deliver to all inner London boroughs including Croydon, Lewisham, Southwark, Camden, and Hackney, as well as Greater London areas such as Enfield, Bexley, Redbridge, and Barnet. We also serve the surrounding counties of Kent, Essex, Surrey, and Hertfordshire. Trade quantities are welcome — contact us for volume pricing and availability.