Adjustable water flow with pre-set setting allows for maximum use of solution tank, cutting operator expense. Aqua-Stop setting will save water, chemical and money; while allowing for less tank refilling. When operating in Aqua-Saver mode you can clean equal to the larger 26" walk behind scrubbers. Quick pack includes: 97100820 pad driver, 956100 100AH, 12V, AGM battery (2 required), 38" parabolic squeegee, polyurethane blades.