【Cooling Waterfall】This pool fountain sprays water stream from jet return to the fresh air wide and high, lowering water tempreture 5-15 degrees in hot summer days.It brings a nice rain sound that is soothing and relaxing in the yard. No hoses connected and no extra power supply required^ 【Perfectly Fits Pools】Easy installation to screw into the return outlets of booster pumps, equipped with both male 1.5" & female 2.2" threads to fit most eyeball sizes. Inexpensive water sprinkle feature to any in-ground and above ground pools,can be swung into the water when not in use^ 【Adjustable Control Valve】The most ingenious part is the side valve that you can open and close to force more water through the water fountain or allow more water to go into the pool directly. You can regulate the water cover and pump power to control height of the water spray^ 【Swivel Ball Mount】This pond waterfall has a ball joint under water, so you can angle the direction of the fountain away from the edge of the pool in order to keep water from landing outside the pool. The water outlet is stable and easy to use, won’t spin/bounce around or popping off like the flow ones^ 【Fun for Kids and Family】Except for the cool water spray, the white tube of high quality ABS plastic allows you to paint colors and interesting patterns for kids. As the cooler season adds pool heater return - it is like a hot shower that everyone fights to get under^