EPIRB hydrostatic release kits
HydroFix HRU100

Fits all ACR Cat I EPIRBs:

Satellite 406™ RLB-27, product no. 2754, 2756 (open bracket)
Sea Shelter™ RLB-27, product no. 2754, 2756 (container)
Satellite2 406™ RLB-32, product no. 2774
RapidFix™ RLB-33, product no. 2776
GlobalFix™ RLB-35, product no. 2742

Hydrostatic release kits need to be replaced every 2 years, including the release rod.