Hydrostatic Release Unit

Hydrostatic Release Unit

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There are some shortages on products. Please call or email for availability.

Great Circle Hydrostatic Release Unit is a quick release system that allows your life raft to inflate automatically in an emergency situation without you having to do anything. Designed and fabricated from tough non-corrosive materials, the HRU is durable and effective in an emergency situation. From 1.5 to 4.0m, water pressure is sufficient enough to operate the release mechanism to free life rafts and emergency beacons for deployment, without any manual handling. This offers considerable advantages both in reliability and performance as the releasing system does not depend on a pyrotechnic device or a battery to release the life raft or emergency beacon.

The Hydrostatic Release Unit meets all international regulations and each unit is individually tested to ensure that it is the most reliable.

Features Include:

  • Suitable for life rafts from 4 to 150 persons, maximum load 2250lbs.
  • Fabricated from non-corrosive, long lasting, quality components.
  • High reliable release mechanism - does not depend on pyrotechnic device or battery.
  • Service life of three years - no maintenance required.
  • Complies with SOLAS and IMO regulations, DNV, Wheelmark Certified, US Coast Guard approved.

After ordering online, you will receive an automated email confirmation containing your order details. Your order will then be confirmed within a few minutes of placing your order.

It is our policy to ensure we deliver to our customers in a timely manner. In order to achieve this we use a range of freight companies depending on the size and weight of your order. In some instances we may use a number of carriers to get your products to you. For example, chain may come by road, some electronic equipment by air.

Most orders are shipped within 2 - 5 Days

Shipping rates

Orders delivered to Australian Post Codes under $399 attract an $15.00 shipping charge.

Orders of $399 or more ship free.* Excludes Bulky Or Dangerous Goods

For Remote areas and bulky items. If the cost to send is vastly different to our standard delivery costs, someone from our team will contact you prior to dispatch to arrange further payment or to issue a refund if you are not happy with the additional charges.

International orders will be charged at $0.00 initially and our staff will be in contact with a shipping quote. If the quote is not accepted the customer reserves the right to cancel their order and be refunded in full.

Should you have any queries or concerns about shipping, please don't hesitate to get in touch by clicking the support button on bottom right of the page.

What Our Customer Say

i ordered 6 port holes and these guys found exactly what i needed and went out of there way so much to help me 5 star service .


Prompt shipping and a good price. Item was well packed and arrived as ordered and undamaged. Thanks

Tom Mercer

Good quality parts easy to order on downside a couple of delays but they were quick to call and let me know

Darcy Scholte

Good service. Parts delivered on time and in good condition. There was a bit of mix up with one of my first orders but very promptly sorted and sent our to...


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