John Guest PP061208WP Reducer Fitting 3/8 X 1/4

Product Description

The JOHN GUEST PP061208WP is a push-fit reducer fitting designed to transition tubing from a 3/8-inch line down to a 1/4-inch line. It connects two different tube sizes in a single step without tools, clamps, or solvent. Push-fit construction allows fast, repeatable connections that are commonly used in plumbing, water treatment, and refrigeration line sets. Licensed plumbers and HVAC technicians rely on this fitting type for clean, leak-resistant tube reductions in tight spaces where traditional compression fittings are difficult to seat.

This reducer is suited for residential and light commercial applications where tube sizes must be stepped down within a distribution or supply line. Typical uses include under-sink water filtration systems, ice maker supply lines, reverse osmosis installations, and similar low-pressure fluid distribution runs. Its compact profile makes it practical in confined cabinet or chase installations where fitting bulk is a concern.

Key Features

• Reduces 3/8-inch tubing to 1/4-inch tubing in a single fitting
• Push-fit design allows tool-free connection and disconnection
• Compact form factor suited for confined installation spaces
• Single-unit sell quantity - one fitting per order

Compatibility

Designed as an OEM-style push-fit reducer compatible with standard 3/8-inch and 1/4-inch outside-diameter tubing used in water filtration, ice maker, and plumbing distribution applications.

Installation Notes

Installation is performed by licensed plumbers or qualified HVAC technicians. Shut off the water supply and relieve line pressure before cutting or fitting tubing. Ensure tubing ends are cut square and deburred before insertion to maintain a proper seal. Verify that tubing outside diameter and material are compatible with push-fit fittings before installation.