The John Guest Polypropylene Reducing Bulkhead Union delivers reliable push-to-connect convenience for reverse osmosis and water filtration installations requiring secure bulkhead pass-throughs. Manufactured in the UK with John Guest's proven grip-and-seal collet technology, this white polypropylene fitting ensures leak-free connections without tools or thread sealants.
SPECIFICATIONS
John Guest Reducing Bulkhead Union Technical Details
| Manufacturer | John Guest Speedfit (UK) |
| Material | Polypropylene |
| Color | White |
| Connection Type | Push-to-connect quick connect |
| Fitting Style | Reducing bulkhead union |
| Collet Design | Grip-then-seal arrangement |
| Application | RO systems, water filters, bulkhead pass-through |
| Assembly | Tool-free push-fit installation |
INSTALLATION & USE
How to Install the John Guest Bulkhead Union
- Drill appropriate hole in tank or reservoir wall and insert the bulkhead fitting through the opening
- Secure the bulkhead union by tightening the nut on the opposite side until firmly sealed against both surfaces
- Push the tubing fully into the quick connect fitting until it bottoms out in the collet
- To disconnect, unlock the collet nut, push the collet toward the fitting body, and pull the tubing free
COMPATIBILITY
What Works with This Fitting
The John Guest Reducing Bulkhead Union is compatible with standard reverse osmosis tubing and works seamlessly with all John Guest push-fit components. Ideal for mounting connections through RO system housings, storage tank installations, and filtration equipment requiring secure bulkhead pass-throughs. The polypropylene construction resists chemicals and maintains seal integrity in potable water applications.
🔧 Pro Tip: Before pushing tubing into the collet, cut the tube end square with a proper tubing cutter and ensure no debris is present. A clean, square cut ensures the collet grips properly and prevents slow leaks at the seal.
