McAlpine Black 32mm 34mm 36mm Joiner Coupling Compression Multifit 1 1/4″

McAlpine Black 32mm 34mm 36mm Joiner Coupling Compression Multifit 1 1/4″

Features

The McAlpine Black Universal Multi-Fit Straight Coupling is a commercial-grade plumbing fitting designed to quickly and securely join two lengths of basin waste pipe. Featuring a sleek black finish, this straight coupling effortlessly connects 32mm, 34mm, and 36mm outer diameter pipes, making it ideal for exposed plumbing, modern industrial-style vanity units, or matching existing black pipework.

Moulded from high-grade black polypropylene, it features heavy-duty internal rubber sealing washers and hand-tighten compression nuts on both ends. This allows you to connect plastic or copper 1 1/4″ domestic waste lines smoothly without the use of messy solvent glue or specialized tools, ensuring a completely watertight, permanent, or temporary seal.

• Genuine McAlpine fitting delivers trade-quality reliability with a sleek black aesthetic
• Universal multi-fit compression design accepts 32mm, 34mm, and 36mm outer diameter pipes
• Dual-compression connection on both ends replaces the need for frustrating solvent welding
• Perfect for exposed under-sink plumbing, dark vanity units, or modern bathroom renovations
• Durable black polypropylene body resists fading, boiling water, and household chemicals

Technical

• Component Type: Straight Coupling / Inline Pipe Joiner
• Pipe Size Compatibility: 32mm, 34mm, and 36mm Outer Diameter (O.D.)
• System Size: 1 1/4″ BSP (Standard Bathroom Basin Waste Size)
• Connection Type: Universal Multi-Fit Compression (Both Ends)
• Material: High-Grade Polypropylene
• Colour: Black
• Inclusions: Pre-fitted internal rubber sealing rings and pressure washers

Details

When installing an on-trend black vanity unit or an open-frame console sink, standard white or grey plumbing stands out like a sore thumb and ruins the premium design of your bathroom. Worse still, if you need to repair or extend your existing waste line, you often find that different pipe brands use slightly different outer diameters. Trying to force a standard 32mm, 34mm, or 36mm push-fit coupler onto mismatched pipework is impossible, resulting in a loose fit and destructive water leaks under your sink.

This McAlpine Black Multi-Fit Straight Coupling solves both problems beautifully. Its deep black finish blends seamlessly into modern, dark, or exposed bathroom design concepts. Because it features independent, universal compression collars on both ends, it compresses down uniformly onto any 32mm to 36mm plastic or copper pipe regardless of the brand. There is no messy glue required—just twist by hand for a clean, professional, and entirely watertight connection.

Instructions

1. Simply slide the black nut over the pipe first along with the nylon washer, before the pointed black rubber washer
2. Make sure that the black rubber washer is pointing the thin end towards the white fitting you have yet to put on and slide the rubber on an inch or so
3. Push the rest of the fitting on so that the rubber joins up with the plastic fitting, you may then try and push the fitting with the rubber further down the pipe if need be
4. Finally bring the nut back and screw onto the rest of the fitting, compressing the pointed washer against the plastic to make a seal, then repeat the action for the other side and that’s it!

Brand:

• McAlpine

MPN:

• S28M-BL