The newly designed Boat Floater Free Float lift features polyethylene tanks carrying a limited lifetime warranty. This four-corner mount boat lift model has the capability to accommodate wider boats in a narrower stall or slip. This boat lift can accommodate those boats in your 10’ -14′ wide stall or slip. If your dock slip is larger than 14′, please inform us. V-Hull models come with 2 adjustable bunks to accomodate the hull. If the boat lift is operationg on a 2 tank system, it has the option to upgrade to a 3 tank system to allow more capacity lift. All V-hull lifts have the ability to convert to pontoon or tritoon models. If you have a reverse prop (as seen in new model surf edition boats) please let us know so that we can properly accomodate those props.