Our most popular model boat lift, the UltraLift Boat Lift has polyethylene tanks which are highly resistant to impact or low-water damage. Flexing when stressed, the tanks then return unharmed to their original shape! All the steel parts are above the water*- a completely new concept in the boat lifting industry- to defy rust, corrosion, and the elements – protecting your boat for years of convenient and care-free storage. We have models available to hoist boats ranging from 4,400-32,000 lbs.