Stop battling mismatching plumbing connections and leaky under-sink pipework. Our commercial-grade threaded waste adaptors make it effortless to bridge the gap between irregular waste threads, European imports, and standard UK traps. Featuring top trade brands like McAlpine, these essential fittings eliminate cross-threading headaches on thick ceramic basins or kitchen sinks. Designed with a heavy-duty internal sealing washer and high-grade polypropylene, they deliver a permanent, watertight seal that handles boiling water and heavy chemical cleaners without degrading. Perfect for simple plumbing repairs or new appliance installations.

Showing 1–12 of 17 resultsSorted by popularity

We are experiencing technical difficulties, therefore products from our shop will be unavailable for next few days until the problem is fixed. If you require any goods, please purchase through our eBay shop PIPESCENES555 - https://www.ebay.co.uk/str/pipescenes555
Thank you for your patience and we apologise for any inconvenience.

48mm Thread Sink Waste Extension Adapter — McAlpine T12A-F Plumbing Spacer

In stock

£2.14

Official McAlpine T12A-F White Plastic 48mm Waste Thread Adapter — Short Flush Spigot Coupler with Extra-Thick Rubber Sealing Gasket

McAlpine T12A-F Flush Waste Thread Adaptor — 1.5″ BSP Male to Female Spigot

In stock

£2.14

Official McAlpine T12A-F White Plastic Short Waste Extension — 1.5-Inch BSP Flush Spigot Coupler with Extra-Thick Rubber Sealing Gasket

McAlpine T25 Threaded Female Waste Connector 1.5″ BSP to 40mm / 43mm

In stock

£1.94

Official McAlpine T25 White Plastic Straight Waste Adapter — 1-1/2" Female BSP Spinning Nut x 43mm ID Solvent Weld Socket Connector with Rubber Seal

McAlpine S12A-F Trap & Waste Thread Extension Adapter – 1 1/4″

In stock

£1.86

Genuine McAlpine S12A-F 1 1/4" Threaded Waste Spacer – Flat Face Adapter for Irregular Sink Threads

McAlpine S12A-F 42mm Trap & Waste Thread Extension Adapter – 1 1/4″

In stock

£1.86

Genuine McAlpine S12A-F 42mm Waste Spacer – Flat Face Adapter for Irregular 1 1/4" Sink Threads

McAlpine T12 Threaded Waste Adaptor Reducer — 1.5″ to 1.25″ BSP Bush

In stock

£1.86

Official McAlpine T12 Replacement Thread Reducer Bushing — 1.5-Inch to 1.25-Inch BSP White Plastic Fitting with Rubber Sealing Washer

McAlpine T16 Trap Inlet Increaser Bush — 1.25″ Female to 1.5″ Male BSP

In stock

£1.37

Official McAlpine T16 White Plastic Waste Thread Increaser — 1-1/4" Female x 1-1/2" Male BSP Bushing Adapter for High-Flow Trap Connections

McAlpine T12A-1 Straight Waste Extension Piece — 1.5″ x 1″ Threaded Spigot

In stock

£2.14

Official McAlpine T12A-1 White Plastic 1-Inch Waste Extension Bushing — 1.5-Inch BSP Male x Female Plumbing Spacer with Rubber Seal

FLOPLAST WS67 Threaded Female Waste Connector 1.5″ BSP to 40mm / 43mm

In stock

£2.06
1.5" Female Thread Adaptor for 43mm Solvent Weld Waste Pipe in White - by Floplast

McAlpine S12A-1 Trap & Waste Thread Extension – 1 1/4″ x 1″ Long

In stock

£1.86

Genuine McAlpine 1 1/4" Threaded Waste Extension Piece – 1" Long Basin Trap Spacer

McAlpine S12A-2 Trap & Waste Thread Extension – 1 1/4″ x 2″ Long

In stock

£1.86

Genuine McAlpine 1 1/4" Threaded Waste Extension Piece – 2" Long Basin Trap Spacer

McAlpine S12A-3 Trap & Waste Thread Extension – 1 1/4″ x 3″ Long

In stock

£1.86

Genuine McAlpine 1 1/4" Threaded Waste Extension Piece – 3" Long Basin Trap Spacer