Specifications include, but are not limited to: 1.Compact battery powered riding auto-scrubber, seated operator type. Scrub path size to be 26” disk (2x 13” disk) with adjustable pad pressure up to 150 lbs. minimum, user selectable. Pad drivers are included with the machine. The pad pressure setting must include a ‘lock out’ feature for management control of this adjustment. Scrub disk motors two (2) are to be .75 hp or higher with disk brush speed to be 300 rpm.2.The machine cannot exceed 48” in length.3.The drive system is to be all-geared (no chain drive) and .75 hp or greater.4.Chassis construction to be of 1/8” steel or greater and is coated against corrosion. The front of the chassis must include urethane bumper rollers, with a corner protection system.5.Wet acid batteries are to be included and installed, resulting in a 36 volt system of at least 225 ah battery capacity. The batteries must be contained in a poly battery box that includes a tool-free drain device,without requiring removal of the batteries.6.There must be a single port watering system installed on the batteries for increased safety and accuracy when adding water, without having to remove cell caps as part of that process.7.A 36V 25 amp battery charger is to be included with the machine, either on-board or shelf style.8.The solution tank must be of 18 gallon capacity or greater. The recovery tank must be of equal size or greater capacity. Both tanks to be constructed of polyethylene of 3/8” thickness or greater.