Brett Martin 110mm Double Solvent Weld Short Boss Pipe

Key Features Summary

• Dual Boss Connections: Features two opposite boss entry sockets, allowing two separate waste runs (such as basins, baths, or appliances) to tie into a main 110mm soil stack at a single point.

• Solvent Weld Jointing: Offers a sleek, permanent, and leak-proof solvent weld connection on both ends for maximum long-term reliability.

• Compact Short Design: Engineered with a shortened barrel length to save valuable space in tight soil stack installations, boxed-in pipe runs, and floor voids.

• High-Quality PVC-U Construction: Manufactured from durable, high-impact PVC-U designed to withstand hot water discharge and household chemicals.

• Fully Compliant: Manufactured in the UK to BS EN 1329 standards, ensuring full compatibility with standard 110mm soil systems.

   

Frequently Asked Questions (FAQ)

What adaptors do I need to connect waste pipes to the BS425 boss?

To connect a waste pipe, drill out the closed face inside the boss entry with a suitable hole saw, then insert a standard 110mm solvent weld rubber or rigid boss adaptor (available for 32mm, 40mm, or 50mm pipe sizes).

Can I use solvent weld cement on this fitting?

Yes. The BS425 is designed for solvent weld installation. Clean both the pipe exterior and the inside socket of the fitting using a suitable pipe cleaner, apply solvent cement evenly to both surfaces, and push together for an immediate, permanent bond.

Is this fitting compatible with other brands of 110mm soil pipe?

Yes, provided the existing pipe system is manufactured to standard UK dimensions (BS EN 1329 / BS EN 1401 for 110mm soil and underground drainage), the Brett Martin BS425 will connect seamlessly.

The Brett Martin 110mm Double Solvent Weld Short Boss Pipe (BS425) is an essential fitting for modern soil and waste installations where space is at a premium. Designed to fit directly into a 110mm soil stack, this compact boss pipe allows you to efficiently branch off up to two smaller waste connections—such as sinks, washing machines, or shower runs—without needing multiple bulky fittings.

Equipped with two pre-moulded boss positions, the fitting accepts standard solvent weld boss adaptors to convert the entries to 32mm, 40mm, or 50mm waste pipe sizes as needed. Its short-length profile makes it the ideal choice for tight installations behind boxing, under floors, or within compact service ducts.

Produced by UK market leaders Brett Martin, this soil fitting is made from robust, chemical-resistant PVC-U. Its smooth inner bore prevents sludge accumulation, maintaining optimal flow rates for foul water drainage systems in both domestic and commercial environments.

Technical Specifications Table

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