HydroHoist (sister brand to Shoremaster) provides premier floating boat lifts. 
The HydroHoist UltraLift series is the most common & popular floating lift model. Available in L-arm, front mount & shallow water configurations. With UltraLift, all steel parts are above water (a revolutionary enhancement for the industry - to defy rust, corrosion & the elements.) This protects your boat for years of convenient & carefree storage.