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The Whale MDPE Tube 15 mm Blue – 10 m (WX7152) is a semi-rigid medium density polyethylene (MDPE) water tube designed for cold water plumbing in caravans, motorhomes, RVs and marine applications. Its 15 mm outside diameter makes it compatible with standard push-fit and Quick Connect plumbing fittings, allowing you to build reliable, leak-resistant water supply lines for sinks, showers, tanks and more.
Ready for Freshwater Systems: Ideal for use in caravan/motorhome potable water systems.
Push-Fit/Quick Connect Compatible: Works with Whale push-fit connectors for fast tool-free assembly.
Reliable Performance: Rated for cold water pressure up to 12 bar (180 psi).
Bend Without Kinking: Semi-rigid design helps maintain flow while routing through vehicle interior.
Colour-Coded Blue: Easy visual identification for cold water lines.
Tube Length: 10 metres
Outer Diameter (OD): 15 mm
Inner Diameter (ID): ~12 mm
Material: Medium-Density Polyethylene (MDPE)
Colour: Blue for cold water
Min. Recommended Bend Radius: ~75 mm
Operating Pressure: Up to ~6 bar hot water, ~12 bar cold water (note: hot rating not usually needed for cold tube)
Temperature Range: Suitable for cold water systems.
✅ 1 × 10 m Coil of Whale MDPE Tube – 15 mm Blue (WX7152)
Tube only; fittings and clips sold separately.
✔ Fast Plumbing Installation: Works with push-fit/Quick Connect fittings — no tools or glue required.
✔ Durable & Flexible: Semi-rigid MDPE resists cracking while still easy to shape.
✔ High Pressure Capability: Suitable for most freshwater plumbing demands under normal use.
✔ Clear Colour Coding: Blue helps differentiate cold water lines from hot.
✔ Reliable Material: Polyethylene resists common water system wear.
Caravan & motorhome cold water plumbing
Boat, marine and freshwater systems
RV or campervan conversions
Wet rooms, sinks, showers and tap water runs
Cut the tube squarely before insertion into push-fit fittings to ensure a secure seal.
Support runs with clips every 30–50 cm to prevent sagging.
Avoid sharp bends — use elbows where direction changes are needed.
| Diameter | 15mm |
| Unit of Sale | 10 Metres |
| Min Rec. Bend Radius | 75mm |
| Brand | Whale |
| Type | Pipes |
| Material | Polyethylene |
| Colour | Blue |
| Primary Construction | Plastic |
| Operating Pressure | Maximum: Hot Water: 6 bar (90 psi), Cold Water 12 bar (180 psi) |
| Fitting | Push-Fit Fitting |
| Diameter Description | 15mm OD |
| Operating Temperature | Maximum: Hot Water: 65°C (150°F), Cold Water: 20°C (68°F) |
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