Hammar Hydrostatic Release Unit (HRU)
Hammar H20 is a hydrostatic release unit designed to be safe and reliable in all extreme conditions that you and your ship might meet on the oceans. Should the vessel sink, the Hammar H20, which is activated by increasing water pressure, will automatically release liferafts and EPIRBs.
The H20 is the best-selling hydrostatic release unit in the world and it has been saving lives on the oceans for more than 25 years. Its safe, reliable and simple design, has earned it more worldwide approvals than any other unit.