Wastemaster Economy Wheelie Tank 38L38 litre capacity Eco Friendly Durability Wheels and axle easily removed for cleaning and storage Wastemaster Economy Wheelie Tank offers a clean and convenient way to dispose of wastewater, helping to prevent it from pooling around your setup or spreading across the campsite. And with its built in carry platform for toilet cassette, you will only need one trip to dispose of your wastewater. For safety reasons, always secure your cassette to the tank