12mm John Guest Adapters

The John Guest 12mm adaptor range offers practical, push-fit solutions for connecting plastic tubing to BSP threaded fittings or through-panel applications. These adaptors are commonly used in water, beverage, and air systems across marine, caravan, and industrial environments.

Designed for speed and reliability, each 12mm adaptor features a secure push-fit connection on one end and either male BSP, female BSP, or bulkhead threading on the other. They are ideal for installations where threaded fittings are required without compromising the ease of use of push-fit systems.

Key Applications

• Marine and RV water systems

• Commercial beverage and cooling systems

• Pneumatic or low-pressure air lines

• Caravan plumbing

• Irrigation and maintenance setups

Product Types Available

• 12mm x 3/8" MBSP Adaptor - JGPM011203E

• 12mm x 1/2" MBSP Adaptor - JGPM011204E

• 12mm x 1/2" MBSP Brass Adaptor - JGRM011214

• 12mm x 1/2" FBSP Adaptor - JGCM451214FS
  

Each adaptor is manufactured from durable acetal or brass, ensuring compatibility with potable water and providing excellent chemical resistance and strength.

Why Choose John Guest Fittings?

Trusted worldwide, John Guest fittings deliver consistent quality, quick installation, and leak-free performance. At Hose Suppliers Australia, we stock a full range of 12mm John Guest adaptors for use in residential, commercial, and industrial systems — backed by expert support from our teams in Brisbane and the Gold Coast.