Description
If water drips from under the filter lid, the culprit is usually a worn O-ring. This NBR 70 part, size 170×5, seals the gap between the two components and is suitable for many Mountfield sand filters.
Technical specifications
| Intended for | filters of the PRO, G and MAXFLO series |
|---|---|
| Made of | NBR 70 |
| Size | 170×5 |
| Part type | O-ring |
| Brand | Mountfield |
| Item number | UHGM600F- |
Compatibility
- code 3BTE0062 → S244 filtration unit
- code 3BTE0061 → S210 filtration unit
- code 3BTE0417 → MAXFLO S210T
- code 3BTE0425 → G S166T
- code 3BTE0418 → G S144T
- code 3BTE0363 → PRO S210S
- code 3BTE0362 → PRO S210T
- code 3BTE0356 → PRO S166T
- code 3BTE0355 → PRO S144T
When and how to replace it
Over time the rubber dries out, swells and even cracks, and the connection starts to leak or let air in. Replace the ring every time you open the lid and check its condition before the season.
- Switch off the pump and release the pressure in the filter.
- Unscrew the filter lid.
- Remove the used ring and clean its seat.
- Position the new ring, taking care that it does not twist.
- Screw it back and watch the connection for moisture.
The original ring has the exact size of the seat and does not shift under pressure – whereas universal versions often have a different thickness.
