Description
The John Guest Elbow Union 1/4" x 1/4" is a premium 90-degree push-fit fitting designed to connect two lengths of 1/4" OD tubing while changing the direction of the water line. Ideal for reverse osmosis systems, drinking water filtration systems, refrigerator water lines, and beverage dispensing equipment, this elbow fitting provides a secure, leak-resistant connection without the need for tools, clamps, or adhesives.
Manufactured from durable, food-grade acetal copolymer, the John Guest Elbow Union offers reliable performance and makes routing tubing through tight spaces quick and easy.
Key Features
- 1/4" Push-Fit Connections: Connects two pieces of standard 1/4" OD tubing.
- 90° Elbow Design: Changes tubing direction without kinking or restricting water flow.
- Tool-Free Installation: Push-fit technology eliminates the need for clamps, glue, or soldering.
- Leak-Resistant Seal: Integrated EPDM O-rings provide a dependable, watertight connection.
- Food-Grade Materials: Safe for potable drinking water applications.
- Reusable Fitting: Tubing can be removed and reinstalled using the release collets.
- Compact & Durable: Ideal for installations where space is limited.
Compatibility
The John Guest Elbow Union 1/4" x 1/4" is compatible with:
- Reverse osmosis systems
- Drinking water filtration systems
- Refrigerator water lines
- Ice maker water supply lines
- Water coolers
- Coffee and espresso machines
- Beverage dispensing systems
Compatible with:
- 1/4" OD polyethylene tubing
- 1/4" OD LLDPE tubing
- John Guest and other compatible push-fit tubing systems
Specifications
Product Type – 90° Elbow Union
Brand – John Guest
Connection Size – 1/4" OD x 1/4" OD
Fitting Type – Push-Fit Elbow
Body Material – Food-Grade Acetal Copolymer
Seal Material – EPDM O-Rings
Installation – Push-Fit
Application – Potable Water Systems
Applications
The John Guest Elbow Union is ideal for:
- Reverse osmosis installations
- Drinking water filtration systems
- Refrigerator and ice maker water lines
- Water cooler installations
- Beverage dispensing systems
- Tight installation spaces requiring a 90° tubing turn
- Water treatment system repairs and upgrades
It provides a clean and reliable solution for routing tubing around corners while maintaining consistent water flow.
Installation
- Cut both tubing ends square using a tubing cutter.
- Ensure the tubing is clean and free of burrs.
- Push each 1/4" OD tube fully into the fitting until it reaches the internal stop.
- Pull back gently to verify the tubing is securely locked in place.
- Pressurize the system and inspect for leaks.
💡 For best results, always use undamaged 1/4" OD tubing and ensure it is fully inserted into both push-fit connections.
Maintenance
For long-lasting performance:
- 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 by plumbing professionals and water treatment specialists worldwide for their exceptional quality, fast installation, and dependable performance. The 1/4" x 1/4" Elbow Union provides a professional solution for routing water lines in residential and commercial drinking water systems.

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