Angle Stop Valve, 3/8″ x 3/8″ x 3/8″ (John Guest)

Description

The John Guest Angle Stop Valve 3/8" x 3/8" x 3/8" is a high-quality push-fit shut-off valve designed to provide a convenient water supply connection for reverse osmosis systems, water filters, refrigerators, ice makers, and other drinking water applications. Installed between the existing cold water supply line and faucet connection, it allows you to isolate the water supply to your filtration system without shutting off water to the entire home.

Featuring John Guest's trusted push-fit technology, this valve installs quickly without the need for soldering, glue, or special tools, making it ideal for both professional installers and DIY homeowners.

Key Features

• 3/8" x 3/8" x 3/8" Connections: Designed for standard under-sink plumbing installations.
• Built-In Shut-Off Valve: Allows the water supply to be turned on or off for servicing or maintenance.
• Push-Fit Technology: Fast, tool-free installation with no soldering, clamps, or adhesives required.
• Leak-Resistant Seal: High-quality EPDM O-rings provide a dependable, watertight connection.
• Durable Construction: Manufactured from food-grade acetal copolymer for long-lasting performance.
• Reusable Design: Can be disconnected and reused when needed using the release collet.
• Potable Water Approved: Suitable for drinking water applications.

Compatibility

The John Guest Angle Stop Valve is compatible with:

• Reverse osmosis systems
• Under-sink drinking water filters
• Refrigerator water lines
• Ice makers
• Coffee and espresso machines
• Water coolers
• Beverage dispensing systems

Compatible with standard 3/8" OD tubing and many under-sink cold water supply installations.

📌 Always verify your plumbing configuration before purchasing.

Specifications

Product Type – Angle Stop Valve

Brand – John Guest

Connection Size – 3/8" x 3/8" x 3/8"

Connection Type – Push-Fit

Material – Food-Grade Acetal Copolymer

Seal Material – EPDM O-Rings

Application – Potable Water Systems

Installation – Tool-Free Push-Fit

Applications

The John Guest Angle Stop Valve is ideal for:

• Reverse osmosis installations
• Under-sink water filtration systems
• Refrigerator water supply lines
• Ice maker installations
• Drinking water dispensers
• Coffee machines
• New filtration system installations
• Water filter servicing

It provides a dedicated shut-off point, making maintenance and filter changes quick and convenient.

Installation Instructions

1. Shut off the main water supply.
2. Disconnect the existing 3/8" cold water supply connection.
3. Install the angle stop valve according to your plumbing configuration.
4. Push the tubing fully into each push-fit connection until it reaches the internal stop.
5. Turn the water supply back on and inspect all connections for leaks.

💡 Ensure tubing is cut square and fully inserted into each fitting for a secure, leak-free seal.

Maintenance

For reliable operation:

• Periodically inspect the valve for leaks or signs of wear.
• Operate the shut-off valve occasionally to prevent sticking.
• Replace the valve if it becomes damaged or difficult to operate.
• Use only with compatible tubing and potable water applications.

Why Choose John Guest Push-Fit Valves?

John Guest fittings and valves are trusted worldwide for their ease of installation, dependable sealing performance, and long service life. The 3/8" x 3/8" x 3/8" Angle Stop Valve offers a simple and reliable solution for adding a dedicated shut-off point to your water filtration or appliance water supply.