John Guest fitting set for dual-circuit tap 3/8" × 1/4"

John Guest connector set for connecting a dual-circuit tap 3/8" × 1/4"

The John Guest PI011203S + PI061208S set has been designed for quick and convenient connection of a dual-circuit tap in water filtration and treatment systems. The set enables a tight connection between a 3/8" threaded connection and a 1/4" hose, used in most under-sink filters and reverse osmosis systems.

The set includes two original John Guest connectors: PI011203S – a screw-in connector with a 3/8" BSPT thread and a 3/8" quick-connect fitting, and PI061208S – a 3/8" spigot type reducer × 1/4" quick-connect fitting. The combination of these elements allows for an easy transition from a 3/8" hose to a standard 1/4" hose without the need for additional adapters.

Push-Fit technology ensures quick installation without the use of specialized tools and allows for repeated connection and disconnection of the hose while maintaining high tightness. Original John Guest components are intended for contact with drinking water and are characterized by durability and full compatibility with installations using 1/4" and 3/8" hoses.

The set is ideal for installing three-way and dual-circuit taps, modernizing existing installations, and connecting under-sink filters and reverse osmosis systems. It is a ready-made solution that facilitates installation and eliminates the need to independently assemble appropriate connectors.