The Strangko Nylon Bowl is virtually indestructible. Nylon, unlike many plastics, actually flexes on impact then springs back to its original shape. Bowl is lightweight, smooth and cleanable. The bright blue paddle activates the nylon valve to deliver water quickly then shuts off cleanly. Paddle may be locked with flip-up lever for selective watering. Bowl is shown with mounting hardware which is not supplied, nuts and bolts are not included. U-Bolts are typically used to install. 1/2" NPT connection.