McAlpine T12A-2 Straight Waste Extension Piece — 1.5″ x 2″ Threaded Spigot

McAlpine T12A-2 Straight Waste Extension Piece — 1.5″ x 2″ Threaded Spigot

Features

This genuine McAlpine T12A-2 trap waste extension is a trade-quality problem-solving fitting designed to vertically extend a standard plumbing outlet by exactly 2 inches. Engineered specifically for kitchen sinks, baths, and shower wastes, this high-grade white polypropylene spacer features identical 1.5″ BSP threads on both ends (female running nut on top, male spigot on the bottom). It provides a solid, rigid 50mm extension piece that bridges larger distance gaps, allowing existing traps to connect cleanly to newly installed or raised sanitaryware without the need to redesign the entire under-sink pipework.

• Genuine McAlpine fitting delivers professional, trade-tested reliability
• Provides a precise 2-inch (50.8mm) vertical drop extension to correct alignment gaps
• Standard 1.5″ BSP threads fit kitchen sinks, baths, and shower waste units
• Features a captive female top nut coupled with a male bottom output thread
• Heavy-duty white polypropylene construction resists hot water and harsh cleaners
• Supplied complete with a premium rubber sealing washer for an instant watertight lock

Technical

• Brand: McAlpine
• Part Number: T12A-2
• Product Type: Straight Waste Thread Extension Piece / Spacer
• Extension Length: 2 Inches (50.8mm)
• Thread Size: 1.5″ BSP (Fits standard 40mm / 1.5-inch UK waste fittings)
• Thread Gender: Female Top Nut x Male Bottom Threaded Outlet
• Material: Premium Polypropylene (White Plastic)
• Inclusions: Extension Body, Heavy-Duty Sealing Washer
• Suitability: Domestic Kitchen Sinks, Standard Baths, and Shower Wastes

Details

Installing a deeper kitchen sink or raising a bath chassis frequently leaves you with a major alignment problem underneath. A deeper basin bowl or altered waste level often means your existing 1.5″ plumbing trap drops too low or sits exactly two inches short of the new drain outlet thread. Because rigid plastic waste systems offer zero vertical flexibility, trying to force the pipework to stretch will cross-thread the joints, leading to a constant, destructive leak behind panels or inside cabinets. Redoing the entire waste trap run from scratch just to gain a 50mm clearance is a frustrating waste of time and materials.

Using this genuine McAlpine T12A-2 trap waste extension resolves these significant height discrepancies in less than a minute. This fixed 2-inch extension spacer twists directly onto your existing waste outlet thread, seamlessly dropping the connection down to meet your trap perfectly. The integrated premium rubber washer compresses into place immediately, eliminating the need for messy silicone or plumbing tape. You safely preserve your original under-sink layout, guarantee a dry, leak-free installation, and avoid completely rebuilding your drainage pipework.