Description
Housing O-Ring for Hydronix HF2 & HF3 Filter Housings
Keep your filter housing watertight with this replacement O-ring designed for Hydronix HF2 and HF3 housings. A worn or damaged O-ring can cause leaks and reduce filtration efficiency — regular replacement is recommended as part of routine maintenance.
Compatibility
| Fits Housing | Notes |
|---|---|
| Hydronix HF2 | |
| Hydronix HF3 | |
| Other brands with matching specs | See measurements below |
O-Ring Specifications
- Outside Diameter: 90mm
- Inside Diameter: 83mm
- Thickness: 3.5mm
Why Replace Regularly?
O-rings degrade over time due to exposure to water, chemicals, and pressure cycles. A compromised O-ring can cause leaks at the housing seal, reducing system performance and potentially damaging surrounding components. Replace whenever you change your filter cartridge or if you notice any leaking.
How to Replace
- Turn off the water supply and relieve pressure from the housing
- Remove the housing cap
- Remove the old O-ring from the groove
- Clean the groove thoroughly
- Apply a small amount of food-grade silicone grease to the new O-ring
- Seat the new O-ring evenly in the groove
- Reassemble and restore water supply
- Check for leaks
Matching Filter Housing
Also need a replacement filter housing? See our filter housings collection for compatible options.
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