ALEKO AP250 Portable Multi Functional Pressure DC 12V Car Washer Bucket AP250 Multi functional Car Washer bucket. Working voltage DC 12V. Bucket volume: 4 gallons. Discharging tube: 1.8 meters (6 feet.) Cable length: 3 meters (9.8 feet) Water Pump working pressure: 8 to 10 kilograms (17.6 to 22 Pounds.) Brush Water Yield: 0.26 - 0.5 gallons per minute. Spray Gun Water Yield: 0.5 to 1 gallons minute.