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Water-level dry-docking for outboard and stern drive boats.

Like-new performance, reduced maintenance, no more antifouling and the capacity to flush your motor at water-level: the SeaPen SL Gate unit redefines dry-docking for stern drive or outboard boat owners.

The SeaPen Process, DOCKPRO

Simple, safe berthing.

Does the idea of berthing your boat fill you with dread? Have you been blown off the dock as someone on board makes a leap of faith towards land to tie off your mooring lines? Have you come precariously close to putting your bowsprit through the window of the boat next door?

Using a SeaPen makes berthing your boat safe and easy: the SeaPen will catch your boat as you enter, guide you in and hold you at the dock while you tie off your mooring lines .

For Stern Drive and Outboard Motors.

A world first from the world leaders. SeaPen SL has been specifically designed with Stern Drive and Outboard motors in mind and is the first ever water level dry-docking system to give you total access to your motor, all the way from the skeg to the transom.

Salt water has forever been the nemesis of the outboards and stern drives, but thanks to SeaPen SL, basic motor maintenance, like rinsing, flushing and cleaning, has never been easier.

Shallow berth? There’s a solution.

SeaPen SL is the shallowest operating SeaPen ever thanks to a radical breakthrough in our skin and rope mesh design. Its shallow draft gives nearly everyone the opportunity to care for their boat at water level, using a SeaPen.

SeaPen SL is the ideal companion to shallow berthing locations.

Uninterrupted use of your boat.

You can always access your boat when it’s in a SeaPen. Loading and unloading your boat is as easy as ever, keeping your boat safe to use for you and your family.

Fancy hopping on board for a sneaky drink as the sun goes down? Not a problem. You can always be on board your boat whilst it’s in a SeaPen.


DOCKPRO have been leading the way in dry-docking systems since 2004. Need assistance or advice? Our professional team is always ready to help.

Our highly qualified installation team are on hand to carry out any installations. From Jet Ski docks to marina installations, our team can do it all.


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We always enjoy hearing from YOU, so please feel free to get in contact and ask us anything about our world class dry docking products.