This is the best picture I have of the starboard trim tab on a 2001 Horizon 76. There is a bit of a leak in one of the cylinders (sheen on the water when active) so I'd like to replace the cylinders. The controls at the helm are Bennett, but when I sent this picture to Bennett, they stated that these cylinders were not from them. There's an OilDyne pump in the lazarette for each side: First, a stupid question: Why are there three cylinders? And is there a way to identify the manufacturer of the cylinders prior to haul-out? I'd like to get them ordered and ready to install by the yard. Thanks for any help or tips!