The McAlpine Combination Sink / Washing Machine Trap 1-1/2" is a multi-functional tubular waste trap designed to serve kitchen sinks while providing a dedicated inlet nozzle for domestic appliance discharge. Manufactured by McAlpine from high-impact white polypropylene, this fitting features a standard 1-1/2 inch BSP thread and an integrated 75mm deep water seal, effectively preventing foul sewer gases from escaping into the property.
 
Equipped with an angled nozzle that accepts standard 135-degree flexible discharge hoses from washing machines or dishwashers, the trap allows domestic appliances to drain safely into the sink's waste line. The appliance nozzle includes an internal directional non-return valve and plug to prevent sink wastewater from back-feeding into the appliance, ensuring clean and reliable operation across both fixtures.
 
Ideal for compact kitchen cabinets and utility room installations, the trap utilizes compression seal nuts and rubber washers for simple, hand-tightened watertight connections to standard 40mm waste pipes. Built to handle boiling water discharge, laundry detergents, and grease, this combination trap provides professional plumbers and DIY installers with a practical, space-saving drainage solution.