McAlpine STW8-R Chrome Shower Waste Trap — 50mm Hole 50mm Deep Seal

McAlpine STW8-R Chrome Shower Waste Trap — 50mm Hole 50mm Deep Seal

Features

This genuine McAlpine 50mm deep seal shower trap is a high-performance drainage assembly designed for shower trays with a standard 50mm waste hole. Bearing the part number STW8-R, it features a wide 85mm chrome-plated ABS top flange and a removable centre grid for a sleek, modern look. Engineered with a full 50mm water seal depth to meet strict building regulations, it has an under-tray height of 118mm. It comes supplied with a versatile 95° Multifit bend connection, allowing seamless alignment with standard waste pipework. Despite the compact design, it delivers a fast 54L/min flow rate to clear wastewater instantly.

• Genuine McAlpine British hardware ensures a leak-free factory fit
• Full 50mm water seal depth completely blocks foul sewer odours
• Supplied with a 95° Multifit bend for flexible pipe alignment
• Wide 85mm chrome-plated ABS flange adds a clean, contemporary finish
• Powerful 54L/min flow rate keeps your shower tray bone dry
• Removable grid and internal dip tube allow swift clearing from above
• Durable polypropylene body handles thermal expansion and harsh chemicals

Technical

• Brand: McAlpine
• Part Number: STW8-R
• Tray Hole Compatibility: 50mm Diameter
• Top Flange Size / Finish: 85mm Overall Width / Chrome-Plated ABS
• Under-Tray Height: 118mm
• Water Seal Depth: 50mm (Full Deep Seal)
• Outlet Connection: 1.5″ BSP Thread with 95° Multifit Coupling
• Flow Rate: 54 Litres per Minute (Tested under 120mm constant head)
• Material: Polypropylene (Body) and Chrome-ABS (Top Flange)
• Certification: Conforms to BS EN 274-2:2002 (Clause 5)

Details

Shallow shower traps often lose their water barrier due to siphonage or evaporation, allowing foul, toxic sewer smells to back up into your bathroom. Consequently, your beautiful enclosure is ruined by a constant, unpleasant drain odour. Furthermore, many high-flow traps are incredibly stiff to install in tight spots. As a result, installers struggle to line up rigid pipework, leading to cross-threaded connections and hidden, slow-tracking leaks behind the plinth.

Fortunately, installing this authentic McAlpine 50mm deep seal shower trap completely solves these drainage and installation headaches. Specifically, the full 50mm deep water barrier provides a constant, legally compliant block against sewer gas backup. Additionally, the included 95° Multifit bend swivels effortlessly to match your existing pipe alignment, creating a perfectly stress-free, watertight connection. Therefore, you get a beautiful chrome finish, a fresh-smelling bathroom, and absolute peace of mind.