Description
John Guest 12mm x 12mm Pushfit Shut Off Valve – Plastic Blue & White (PPMSV041212W)
Genuine WaterMark-Approved Shut Off Valve for Caravans, RVs & Marine Systems
The John Guest 12mm x 12mm Pushfit Shut Off Valve (PPMSV041212W) is a genuine, WaterMark-certified fitting designed for use in caravan, RV, marine, and household water systems. Made from high-quality polypropylene with EPDM seals, this valve provides superior chemical resistance and durability compared to acetal alternatives — ensuring long-lasting performance even in demanding conditions.
Featuring John Guest’s trusted push-fit technology, it allows for quick, tool-free installation and easy disconnection, making it ideal for DIY setups or professional installations.
This 12mm shut off valve is designed for on/off water flow control only (not for flow regulation), providing a secure, leak-free seal for potable water applications.
✅ Key Features & Benefits
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Genuine John Guest Quality – Official PPMSV041212W model used by leading caravan manufacturers.
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Fast Push-Fit Connection – 12mm push-fit ends allow quick, tool-free installation and removal.
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Quarter-Turn Shut Off – Simple ¼-turn handle for reliable open/close water control.
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Durable Polypropylene Construction – Lightweight, impact-resistant, and corrosion-proof.
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EPDM Seals – Excellent resistance to chemicals, scale, and heat for long service life.
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Bi-Directional Flow – Can be installed in either direction for flexible plumbing layouts.
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WaterMark Approved – Certified for use in Australian potable water systems.
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DIY Friendly – Perfect for caravan, RV, camper trailer, marine, or household use.
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For Water Use Only – Not suitable for air or inert gas systems.
⚙️ Technical Specifications
| Specification | Details |
|---|---|
| Brand | John Guest |
| Model | PPMSV041212W |
| Size | 12mm x 12mm |
| Connection Type | Push-fit (Speedfit) |
| Function | Shut Off Valve (¼ turn open/close) |
| Material | Polypropylene (Blue & White) |
| Seals | EPDM |
| Certification | WaterMark Approved |
| Applications | Potable water only – caravans, RVs, boats, homes |
📦 What’s Included
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1 × John Guest 12mm x 12mm Pushfit Shut Off Valve (PPMSV041212W)
🌏 Applications
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Caravans & RV plumbing systems
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Camper trailers & motorhomes
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Marine & boat freshwater systems
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Household under-sink or appliance water lines
💡 Why Choose John Guest?
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World leader in push-fit plumbing fittings
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Trusted by caravan manufacturers and plumbing professionals across Australia
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Fast, clean installation with no tools required
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Fully WaterMark certified for potable water use
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Excellent durability and chemical resistance