Union Tee, 3/8″ x 3/8″x 3/8″ Push Fit (John Guest)

Description

The John Guest Union Tee 3/8" x 3/8" x 3/8" Push Fit is a high-quality push-fit fitting designed to create a three-way connection between 3/8" OD tubing in water filtration, reverse osmosis, refrigerator water line, and beverage dispensing systems. Featuring John Guest's trusted push-fit technology, this tee fitting provides a fast, secure, and leak-resistant connection without the need for tools, clamps, or adhesives.

Manufactured from durable, food-grade acetal copolymer, this reusable fitting is ideal for branching water lines, adding additional equipment, or expanding existing water filtration systems.

Key Features

• Three 3/8" Push-Fit Connections: Connects three lengths of standard 3/8" OD tubing.
• Tool-Free Installation: Quick push-fit design requires no soldering, glue, or clamps.
• Leak-Resistant Seal: High-quality EPDM O-rings provide a reliable, watertight connection.
• Food-Grade Construction: Safe for potable drinking water applications.
• Reusable Design: Tubing can be disconnected and reused using the release collets.
• Compact & Durable: Built for long-lasting performance in residential and commercial systems.
• Corrosion Resistant: Will not rust or corrode in normal water applications.

Compatibility

The John Guest Union Tee 3/8" x 3/8" x 3/8" is compatible with:

• Reverse osmosis systems
• Drinking water filtration systems
• Refrigerator water lines
• Ice maker installations
• Water coolers
• Coffee and espresso machines
• Beverage dispensing equipment
• Commercial water filtration systems

Compatible with:

• 3/8" OD polyethylene tubing
• 3/8" OD LLDPE tubing
• John Guest and other compatible push-fit tubing systems

Specifications

Product Type – Push-Fit Union Tee

Brand – John Guest

Connection Size – 3/8" OD x 3/8" OD x 3/8" OD

Fitting Type – Tee

Body Material – Food-Grade Acetal Copolymer

Seal Material – EPDM O-Rings

Installation – Push-Fit

Application – Potable Water Systems

Applications

The John Guest Union Tee is ideal for:

• Branching water supply lines
• Reverse osmosis installations
• Under-sink drinking water systems
• Refrigerator and ice maker connections
• Water cooler installations
• Beverage dispensing systems
• Water filtration upgrades and expansions

It provides a simple and reliable way to split a water line while maintaining excellent flow and dependable sealing.

Installation

1. Cut all tubing ends square using a tubing cutter.
2. Ensure tubing is clean and free of burrs.
3. Push each tube fully into the fitting until it reaches the internal stop.
4. Pull back gently on each tube to confirm a secure connection.
5. Turn on the water supply and inspect for leaks.

💡 Always use 3/8" OD tubing and ensure it is fully inserted into each push-fit connection for the best seal.

Maintenance

For reliable operation:

• Periodically inspect the fitting for leaks or signs of wear.
• Keep tubing properly supported to reduce stress on the fitting.
• Disconnect tubing only by pressing the release collet.
• Replace the fitting if damaged or if it no longer seals properly.

Why Choose John Guest Push-Fit Fittings?

John Guest fittings are trusted worldwide for their exceptional reliability, quick installation, and long-lasting performance. The 3/8" x 3/8" x 3/8" Union Tee offers an easy, professional solution for splitting water lines in residential and commercial drinking water systems.