## Quick Answer
Every 50 cycles or annually. Replace immediately if damaged. Keep spare kit.
## Replacement Schedule
| Condition | Interval |
|———–|———-|
| Normal use | 50 cycles |
| Time-based | Annually |
| Harsh environment | 25 cycles |
| Critical applications | 20 cycles |
## Warning Signs
– Cracks or splits
– Flattening
– Discoloration
– Water ingress history
## Contact
Email: support@hysfsubsea.com for O-ring kits








