XPOWER FM-88WK Multi-purpose Oscillating Misting Fan with Built-In Water PumpDescription XPOWER FM 88WK Multi purpose Oscillating Misting Fan with Built In Water Pump The FM 88WK from XPOWER is a truly unique and versatile product with a built in water pump. It now has oscillation for maximum coverage and cooling for all your outdoor events. Our portable water reservoir, model WT 45, is part of the "WK" kit. holds 11. 8 gallons 45 liters of water at most. With our mobile water reservoir, you can use the built in water pump to