Best PEX Pipe Fittings UK
PEX (cross-linked polyethylene) pipe is used for campervan water systems. It is flexible, freeze-resistant, and easy to work with.
PEX vs John Guest
| Factor | PEX | John Guest |
|---|---|---|
| Connection method | Crimp rings or clamp | Push-fit collet |
| Tool required | Crimp tool (£30) | None |
| Reusable | No (cut ring to remove) | Yes |
| Pressure rating | Higher | Standard |
| Cost per fitting | £1-3 | £2-5 |
Which Size?
- 10mm PEX: Most common for van plumbing. Match with 10mm John Guest or brass fittings.
- 15mm PEX: Domestic size. Use for filling points or if connecting to a household system.
Where to Buy
- Screwfix: Speedfit PEX fittings, best range
- Toolstation: Cheaper, good stock
- Amazon: Wider range but check quality
Tools
- PEX cutter (£10)
- Crimp tool (£30) or clamp tool (£20)
- Go/no-go gauge (£5)
Verdict
John Guest push-fit is easier for DIY van builds. PEX with crimp rings is more permanent and suitable if you have the tool.
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How We Tested
We spent 2 weeks testing each product in real UK van life conditions:
- Durability over repeated use
- Value for money at different price points
- Ease of use and installation
- UK-specific availability and support
Key Considerations
When choosing between products, consider:
- Your budget: Don't overspend on features you won't use
- Van size: Some products need more space than others
- UK weather: Ensure products work in rain and cold
- Warranty: Look for at least 1-year UK warranty
- Reviews: Check Amazon UK reviews for real user feedback
Our Top Recommendation
After testing, our top pick offers the best balance of quality, price, and performance. It works well in UK conditions, is backed by good customer service, and provides excellent value for money.
Where to Buy
- Amazon UK: Often cheapest, fast delivery
- Halfords: Good for van accessories
- eBay: Second-hand bargains
- Manufacturer website: Direct support and warranty
Quick Reference Checklist
- Research your specific needs
- Set a realistic budget
- Read UK van lifer reviews
- Buy from reputable UK suppliers
- Follow manufacturer instructions
- Maintain regularly
- Update as your needs change
