UK Push-Fit Pipe Compatibility Guide
JG Speedfit, Hep2O and Polypipe push-fit compatibility, sizes, insert requirements and temperature/pressure ratings.
Push-Fit System Comparison
| Feature | JG Speedfit | Hep2O | Polypipe PolyPlumb |
|---|---|---|---|
| Pipe material | PEX (cross-linked PE) | Polybutylene (PB) | Polybutylene (PB) |
| Sizes available | 10, 15, 22, 28 mm | 10, 15, 22, 28 mm | 10, 15, 22, 28 mm |
| Accepts copper? | Yes (all sizes) | Yes (all sizes) | Yes (all sizes) |
| Insert required? | Yes (plastic pipe only) | Yes (plastic pipe only) | Yes (plastic pipe only) |
| Max. temp (continuous) | 82°C | 82°C | 82°C |
| Max. temp (peak) | 95°C | 95°C | 95°C |
| Working pressure | 3 bar at 82°C | 3 bar at 82°C | 3 bar at 82°C |
| Pipe colour | White | Grey / white | Grey |
| Barrier pipe? | Yes (Speedfit barrier) | Yes (Hep2O barrier) | Yes (PolyPlumb barrier) |
Cross-Compatibility
| Fitting ↓ / Pipe → | Copper | Speedfit Pipe | Hep2O Pipe | PolyPlumb Pipe |
|---|---|---|---|---|
| Speedfit fittings | Yes | Yes | Not recommended | Not recommended |
| Hep2O fittings | Yes | Not recommended | Yes | Check manufacturer |
| PolyPlumb fittings | Yes | Not recommended | Check manufacturer | Yes |
Pipe Insert Sizes
| Pipe Size (mm) | Insert Required | Notes |
|---|---|---|
| 10 | Yes (plastic pipe) | Brand-specific insert |
| 15 | Yes (plastic pipe) | Most common size |
| 22 | Yes (plastic pipe) | Brand-specific insert |
| 28 | Yes (plastic pipe) | Brand-specific insert |
Related Calculators
See the Copper Pipe Sizes for copper specifications, or the Plastic Pipe Sizes for all plastic pipe types.
How We Calculate This
Frequently Asked Questions
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Last updated: April 2026
All calculations are estimates. Verify with your supplier.