Allied Precision Kozy Auto Refill Birdbath. The innovative new birdbath with automatic filler, Kozyfill uses no electricity or batteries. No need to ever carry water to your birdbath again. Adds water to the birdbath only when water is needed. Made of durable materials to resist corrosion and scale build-up. Water supply line is hidden in the pedestal. Air pressure forces water from the reservoir to rise to the same height in the birdbath. The KozyFill runs off gravity / no electric needed. Will not crack in winter or in freezing temperatures. Connect KozyFill in 5 easy steps! 1. Mount the KozyFill on the pole near your water source. 2. Connect the reservoir to your faucet. 3. Run the line to your birdbath. All tubing can be buried if desired. 4. Turn on the water and depress the lever arm to begin operation. 5. Set the water level in your birdbath by adjusting the height of the reservoir on the pole. Included with KozyFill: Fully assembled reservoir, mounting pole, faucet Y-coupler w/shutoffs, and 50 ft. of tubing.