FIT ABOVE INGROUND POOLS - New 3 thread adapter included to fit Intex/Bestway/Coleman and other above ground pools with 1-1/2 and 1 1/4 inlet fittings. The equipped 1.5 fountain thread will fit inground pools such as Hayward and regular pool return jets. Eyeball base removal tool also included to help unscrew the return part and install the fountain connector Cooling WaterfallThis 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 Adjustable Control ValveThe 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 MountThis 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, wont spin/bounce around or popping off like the flow ones Fun for Kids and FamilyExcept 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