110-68mm Round Downpipe Adaptor Black

The 110-68mm Round Downpipe Adaptor Black by Kalsi Group (part code ADS6BL) is a purpose-engineered uPVC fitting that bridges a standard 68mm round rainwater downpipe directly to a 110mm underground drainage system. Part of the trusted Kalsi Aqua Flow Rainwater System, it delivers a secure, watertight connection with minimal effort — making it the go-to choice for roofers, drainage contractors, and confident DIYers tackling new builds, extensions, or repair and maintenance improvement (RMI) projects.

Key Features and Specifications

• Part code: ADS6BL
• Inlet diameter: 110mm (fits into a socketed 110mm underground drainage pipe)
• Outlet diameter: 68mm (accepts standard 68mm round downpipe)
• Overall length: approx. 75mm
• Material: UV-stable black uPVC — corrosion, abrasion, and chemical resistant
• Connection type: Push-fit — no solvent cement required
• Colour: Black (RAL 9005 equivalent finish)
• Compatible system: Kalsi Aqua Flow Rainwater System
• Standard: Manufactured to EN1401-1 for underground drainage applications
• Suitable for: New build, RMI, and industrial rainwater drainage installations

Applications

• Connecting 68mm round plastic downpipes into 110mm soil or underground drainage runs
• Residential and commercial roof drainage systems — gutters, downpipes, and drain connections
• Replacement or repair of existing 68mm-to-110mm downpipe junctions
• New build housing drainage where rainwater pipes connect directly to a surface water drain
• Extensions and conversions requiring a downpipe-to-underground-drain adaptor

Why Choose This Product

Kalsi Group is a well-established UK plastics manufacturer with a proven track record across the trade. The ADS6BL adaptor’s UV-stable uPVC construction resists weathering, organic growth, and corrosion — ensuring long-term performance without maintenance. The push-fit design speeds up installation on site, reducing labour time on both new-build and repair jobs. Its compatibility with the wider Kalsi Aqua Flow system means seamless integration with Kalsi gutters, downpipes, and underground fittings already specified on your project.

Delivery in and Around London

We deliver the Kalsi 110-68mm Round Downpipe Adaptor Black to all London boroughs, including Croydon, Lewisham, Southwark, Camden, and Hackney, as well as Greater London areas such as Enfield, Bexley, Redbridge, and Barnet. We also supply to the surrounding counties of Kent, Essex, Surrey, and Hertfordshire. Trade quantities and bulk orders are welcome — contact us for volume pricing and scheduled delivery options.