12mm John Guest Fittings

Our 12mm John Guest fittings range provides a fast, secure push-fit solution for caravan, marine, and low-pressure commercial plumbing systems. Built for ease of use and long-term reliability, these fittings are trusted by professionals for water, beverage, and air lines.

This collection includes all major 12mm John Guest components—from connectors and adaptors to shut off valves, plugs, and accessories. Each product is engineered from high-grade acetal plastic or brass for a strong, corrosion-resistant seal. Installation is quick, requiring no tools, making these fittings ideal for upgrades or fast repairs in the field.

At Hose Suppliers Australia, we stock the complete 12mm range for fast dispatch from our Brisbane and Gold Coast service centres.