360 RGB LED Color Changing Floating Fountain Pump & Light Ring Ring outside diameter: 19" Ring inside step diameter: 4" Ring inside hole diameter: 1 3/4" Ring thickness: 5" Center fixture hole: 1.5"(Max. nozzle or pipe diameter) 12VAC Transformer with 33' cord included. Pump size: 10"(L) x 6"(W) x 7"(H), tube connector 1"(diameter) Pump Output 1584 gph, 190W, cable length 65 ft.