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Invena Pipe Thread Extension Review: Fix awkward tap and radiator connections

1/2" BSP (15mm) Pipe Thread Extension Female x Male Chrome Brass - 100mm Long
4.6
[Chrome Plated Brass]  Durable chrome-plated brass resists corrosion for long-lasting plumbing performance.
[Versatile Application]  Extends bib taps, valves, radiators, and fittings by 10-100mm for flexible installations.
[Multiple Length Options]  Available in ten sizes from 10mm to 100mm to suit varied plumbing needs.
[Standard BSP Threads]  1/2\" BSP female-to-male thread ensures compatibility with common fittings and valves.
[Easy Installation]  Simple fitting process speeds installation and reduces plumbing labor time.
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Plumbing accessory that lets you extend tap and valve connections quickly, avoiding time-consuming pipework. A neat solution for DIYers and installers who need a reliable bridge between mismatched fittings, Invena Pipe Thread Extension. Will it save time and stop you from reworking pipe runs?

⚡ At a Glance
  • Extension Range: Available in lengths from 10mm to 100mm to suit different gap sizes
  • Best for: DIYers, plumbers and installers needing non-invasive tap and valve extensions
  • Not ideal for: Permanent plumbing alterations that require full pipe replacement or re-routing

Chrome-plated brass extension with 1/2" BSP female x male threads for standard fittings. Length options span 10mm to 100mm for flexible installation choices.


Match Imperial and metric fittings - with 1/2" BSP female x male thread

The 1/2" BSP female x male thread is manufactured to fit common bib taps and valve tails without altering existing pipework. Threads engage directly with standard 1/2" BSP connections for a straightforward mechanical join.

Avoids rethreading or adapting pipes when connecting taps or valves, making on-site conversions far quicker and neater.

Bridge gaps without reworking pipes - thanks to multiple length options

Available lengths range from 10mm up to 100mm, allowing selection of an exact extension to span short to moderate gaps. Each length slips between fittings to add reach without cutting or soldering pipe runs.

Saves hours of labour and reduces the need for invasive alterations, useful when replacing fittings or adjusting radiator valves.

Corrosion-resistant finish - with chrome-plated brass construction

A brass body is plated in chrome to provide a polished, water-resistant surface that withstands normal plumbing environments. Chrome plating also helps protect the brass substrate from surface wear and tarnishing.

Keeps visible fittings looking tidy while resisting corrosion in exposed or damp locations, extending service life.

✨ The 4 Key Reasons for Invena Pipe Thread Extension
  1. 1/2" BSP Female x Male - Matches common tap and radiator fittings without rethreading.
  2. Multiple Lengths Available - Choose precise extension to avoid cutting or altering pipes.
  3. Chrome-Plated Brass - Durable finish resists corrosion and maintains a neat appearance.
  4. Quick Retrofit Installation - Fits with basic tools, reducing labour and bathroom downtime.
📋 Technical Details at a Glance
  • Category: Home Improvement / Plumbing Accessory
  • Brand: Invena
  • Product ID: B019MQK53E
  • Thread size: 1/2" BSP Female x Male
  • Material: Chrome-plated brass
❓ Frequently Asked Questions

Q: Is the thread compatible with standard UK fittings?

A: Yes. The thread specification is 1/2" BSP female x male, which matches common bib taps and radiator valve fittings.

Q: Can it extend a radiator valve and by how much?

A: Yes. It can extend valve connections by between 10mm and 100mm depending on the chosen length.

Q: What is the extension made from and how does it finish?

A: The body is brass with a chrome-plated finish, providing a polished, water-resistant surface suitable for exposed plumbing.

🏆 Our Verdict

Suitable for DIYers and tradespeople who need a quick, non-invasive way to bridge mismatched tap and valve fittings. The combination of 1/2" BSP threading, multiple length options and chrome-plated brass construction makes it a practical retrofit choice. The extension repays its initial outlay by avoiding more costly pipework and reducing installation time.