The Happy Hull MK3 boat hull protector is here, with larger bumpers, more flotation and improved bumper rigidity. The latest version also brings a faster installation process and easier storage for seasonal users.
Whether you are choosing your first Happy Hull or already own an MK2, here is what has changed and how to upgrade.
Happy Hull MK2 vs MK3: what is new?
The following improvements are compared with the Happy Hull MK2:
| Feature | MK3 improvement |
|---|---|
| Bumper size | 10% larger bumpers |
| Flotation | 15% increased flotation |
| Bumper structure | 70% improved structural rigidity |
| Installation | Faster installation process |
| Seasonal storage | Easier to pack away and store |
| Existing MK2 protectors | Can be upgraded with MK3 upgrade kits |
10% larger bumpers
The MK3 features 10% larger bumpers, creating a more substantial floating border around the protector. These larger bumpers are a key part of the updated design, working alongside the improvements to flotation and structural rigidity.
15% more flotation
We have increased flotation of the bumpers by 15% compared with the MK2, giving the MK3 greater buoyancy. Together with the larger bumpers, this adds support to the floating structure while your Happy Hull is in the water.
70% improved bumper rigidity
The MK3 delivers 70% improved structural rigidity in the bumpers. This helps the bumpers hold their shape more effectively, creating a firmer structure around the protector.
A faster installation process
We have refined the installation process, making the MK3 faster to install than the MK2. Whether you are setting up a Happy Hull for the first time or returning it to your berth for another season, the updated design makes getting started easier.
Read our Happy Hull installation guide for guidance on setting up and using your protector.
Easier storage for seasonal users
For owners who remove their protector at the end of the boating season, the MK3 is easier to pack away and store. It is a practical improvement for anyone who uses a Happy Hull during the season and puts it away over winter.
Already own an MK2? Upgrade with an MK3 kit
Existing owners can benefit from the latest developments too. Happy Hull MK2 protectors can be upgraded using our MK3 upgrade kits.
To find out about an upgrade for your protector, email about MK3 upgrade kits with your Happy Hull size. We will help you with the next steps.
The Happy Hull principle remains the same
Happy Hull is a flexible floating hull protector for a sheltered marina berth. It creates a barrier between your boat's hull and the surrounding water, helping prevent marine growth without applying antifouling paint to the hull.
The MK3 develops that idea further, with improvements focused on the protector's floating structure and ease of use.
A Happy Hull AutoPump Solar is included with every protector. The AutoPump PRO Mk2 remains an optional faster drainage upgrade.
Frequently asked questions about Happy Hull MK3
What is the difference between Happy Hull MK2 and MK3?
Compared with MK2, the MK3 has 10% larger bumpers, 15% more flotation and 70% improved bumper structural rigidity. It also offers faster installation and easier seasonal storage.
Can I upgrade my Happy Hull MK2 to MK3?
Yes. MK2 protectors can be upgraded with our MK3 upgrade kits. Email hi@happyhull.com with your protector size for details.
Which Happy Hull size fits my boat?
Start with our boat hull protector sizing guide. Length and beam are an initial guide; hull shape, waterline dimensions, propulsion type and berth clearance also matter. Contact Happy Hull to confirm suitability before ordering.
Discover the Happy Hull MK3 range
Ready to choose your protector? Explore the Happy Hull range, check the sizing guide, or ask us for help choosing the right fit.

