Back to Products Hydro Walk Behind Maximum performance - Features include zero-turning radius, infinite variable forward speeds and a wide selection of cutter decks. Specifications Larger image BZT Zero-Turning-Radius Superior, precise cut - Each model features three high-lift, alloy-steel blades, dual independent, variable-displacement hydrostatic pumps, driving two hydraulic wheel motors. Specifications Larger image Bullet Gear Drive Simple, solid design - Durable standard features at the industry's best commercial walk-behind price. Specifications Larger image