<p>The Hammar H20 Blue Top Six-metre Deep Release Hydrostatic Release Unit (HRU) was initially designed for Royal Navy liferafts and is also used on marine evacuation system rafts which are fitted to high-speed craft.</p> <p>Activated by water pressure, the Hammar H20 Blue Top HRU will ensure that a liferaft floats free from a stricken vessel as its operation is triggered at a release depth of approximately six metres.</p> <p>KEY FEATURES</p> <ul> <li>Double looped white rope line</li> <li>Release mechanism</li> <li>Red Weak Line™ with breaking strength 2.2kN ± 0.4kN</li> <li>NATO Approved</li> </ul>