Dimensions: 39"H x 17"W x 21"D Weight: 183 lbs. (full), 16 lbs. (empty) Water Capacity: 20 gal. (fresh), 19 gal. (grey) Pump Capacity (per stroke): 2 fl. oz. Static Sink: Includes basic tank with seat and does not flush. The water from the sink drains directly into the toilet tank. Soap and paper towel dispensers are sold separately. Recirculation Flush Sink: Includes with a sink, soap, and paper towel dispensers. The water from the sink drains directly into the toilet tank. Fresh Flush Sink: Includes with a sink, soap, and paper towel dispensers. This unit supplies water for both hand washing and fresh water for flushing the toilet. When the foot pump is depressed, fresh water flows from the sink to the bowl in the toilet tank to aid in flushing the waste into the tank.