Lever control operates by cam principle and pulls straight up on operating rod providing variable flow. Heavy cast iron head. A 1/4 inch hex head bolt provides simple positive adjustment and eliminates unreliable set screws. Galvanized pipe has no exposed threads subject to the weather. Double bypass valve provides a large volume of water and a patented well pro design. Size is 4 Footx3/4inch. Dimensions are 0.75 X 0.75 X 75.5 UPC Code = 642367118112