This bathtub lift has an incredible design that you will not find anywhere else on the market. The Hoyer Water Powered Bathtub Lift requires no batteries - instead, it uses ordinary household water pressure (as little as 20 PSI) to raise and lower you into your tub. The Hoyer Bathtub Lift connects directly to your existing bath fixtures and can lift up to 200 pounds, yet weighs less than 20 pounds!