The Allied Precision Stone Color Deck Mounted Heated Bird Bath is a heated bird bath designed specifically for deck railing. It features a 18.5" diameter basin with a 2" depth for easy bird bathing. The basin is tested in sub-zero conditions and is crack-resistant in the winter cold. The heating element is concealed beneath the bowl and keeps the water open even at -20° Fahrenheit. The bird bath operates on 150 Watts of thermostatically controlled power and turns on only when the temperature approaches freezing. Made of durable plastic, it has a speckled finish and comes with an EZ-Tilt deck mount for effortless installation and cleaning. Manufactured in the USA, it comes with a one year warranty. The basin dimensions are 18.5" dia. x 2"D and overall dimensions are 20" dia. x 4"H. The power cord is 15" long. Priced at $84.99 with free shipping.