15mm John Guest Fittings

15mm John Guest pipe and fittings suit caravan, marine and low-pressure commercial water systems where the larger bore is needed. The range covers joiners, elbows, tees, end caps, BSP adaptors, shutoff valves, tube inserts, locking collars and pipe saddles, with blue and red tube cut by the metre.

Sizes 15 mm tubeCaravan and RV water systemsMarine plumbing and tanksRefrigeration and beverage setupsPortable building fit-outsTank and pump distribution linesLow-pressure air and water lines
15mm John Guest Fittings

9 products

About 15mm John Guest Fittings

Our 15mm 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 15mm 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 15mm range for fast dispatch from our Brisbane warehouse.

Applications

  • Caravan and RV water systems

  • Marine plumbing and tanks

  • Refrigeration and beverage setups

  • Portable building fit outs

  • Low-pressure air and water lines

Please Note: John Guest can sometimes have supply shortages on certain products, which may result in backorders. Our staff will contact you directly regarding any shortages that may affect your order.

Trade accounts

30-day terms and volume pricing for trades

Open a trade account for tiered pricing across the range, net-30 payment terms at checkout and a dedicated account manager.

Apply for a trade accountCall us (07) 3890 3359