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Overflow Waste Fittings: Plumbing Fittings & Supports
Upgrade or repair your waste pipe system easily with the Polypipe 40mm x 21.5mm Rubber Reducer Adapter (WP74). Designed for seamless push-fit connections, this flexible black rubber reduc...
Upgrade or repair your waste pipe system easily with the Polypipe 40mm x 21.5mm Rubber Reducer Adapter (WP74). Designed for seamless push-fit connections, this flexible black rubber reducer quickly steps down a standard 40mm waste pipe to a 21.5mm overflow or condensate pipe—no solvent welding, heat, or specialist tools required.
Equipped with built-in BioCote® anti-microbial technology, it actively prevents bacterial and mold growth inside waste fittings for a cleaner, safer domestic plumbing setup. The reusable push-fit design allows for quick disassembly and adjustment on-site, making maintenance hassle-free.
Key Features & Benefits
Fast Push-Fit Installation: Creates a secure seal without messy solvent weld adhesive.
BioCote® Anti-Microbial Technology: Inhibits internal microbial growth to keep systems hygienic.
Fully Demountable: Easily disconnect and adjust fittings during installation or maintenance.
Versatile Sizing: Reduces standard 40mm push-fit waste pipes to 21.5mm overflow lines.
Certified Quality: Fully BBA approved and compliant with BS EN 1451-1 standards.
Durability Guaranteed: Made from high-grade rubber and backed by a 1-year warranty.