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John Guest
12mm Single Check Valve
800-02032
A compact, high-quality one-way valve designed to control water flow in 12mm plumbing systems across caravans, 4WD setups, and off-grid water installations. This John Guest check valve prevents backflow in your system, ensuring water only travels in one direction. Ideal…
$29.24$34.00 Save $4.76
Genuine John Guest single check valve designed for 12mm OD pipe systems to prevent reverse water flow.
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A compact, high-quality one-way valve designed to control water flow in 12mm plumbing systems across caravans, 4WD setups, and off-grid water installations.
This John Guest check valve prevents backflow in your system, ensuring water only travels in one direction. Ideal for caravan plumbing, pump setups, filtration systems, and any application where maintaining clean, controlled flow is critical.
Built for reliability and ease of install, it integrates seamlessly into existing 12mm push-fit systems with no special tools required. A simple but essential component for protecting pumps, filters, and water systems from reverse pressure or contamination.
- One-way flow control valve
- 12mm push-fit connection
- Prevents backflow and pressure reversal
- Lightweight and corrosion resistant
- Compatible with standard John Guest systems
