WaterPORT 4.0 Gallon Water TankTake pressurized water wherever you need it with the WaterPORT 4. 0 Gallon Water Tank. 3. 85 gallons of water available to you wherever you need to clean, rinse, refresh, or just water something down. Add pressure as you fill it with a standard garden hose, or use the optional Pump Cap to pump it up while on the road. You can even connect a bike pump, or air compressor to the included Schraeder valve to add up to 40psi. Take pressurized water wherever