The John Guest Acetal Collet, Cartridge and O-ring Repair Kit provides all the internal components needed to restore worn or leaking quick connect fittings to like-new performance. This grey acetal kit is engineered for John Guest fittings used throughout residential and commercial water filtration systems.

SPECIFICATIONS

John Guest Repair Kit Technical Details

Brand	John Guest
Material	Acetal (POM)
Color	Grey
Kit Includes	Collet, Cartridge, O-ring
Application	Quick connect fitting repair
Compatibility	John Guest push-fit fittings
System Type	RO systems, filtration lines
Service Life	Replace when leaking or damaged

INSTALLATION & USE

How to Rebuild John Guest Fittings

Disconnect tubing and unscrew the fitting body to expose the internal components.
Remove the old collet, cartridge, and o-ring from the fitting housing.
Install the new o-ring onto the cartridge, slide the collet over the cartridge assembly, and insert into the fitting body.
Reassemble the fitting and reconnect tubing, ensuring the collet grips securely and the connection is leak-free.

COMPATIBILITY

Fits John Guest Push-Fit Fittings

This repair kit is designed for John Guest acetal quick connect fittings commonly used in reverse osmosis systems, water filters, ice makers, and beverage equipment. The grey acetal construction matches standard John Guest fitting bodies and is compatible with potable water applications. Verify fitting size and style before ordering to ensure proper fit.

🔧 Pro Tip: Keep a repair kit on hand before fittings start leaking. Collets and o-rings wear over time from repeated tubing removal, and having replacement components ready prevents system downtime during routine maintenance.

John Guest - Acetal Collet, Cartridge and O-ring Repair Kit Set