The KozyFill Automatic Bird Bath Filler keeps your bird bath full of fresh water. No need to ever carry water to your bird bath again. The KozyFill runs off gravity, so it uses no electricity or batteries. Unlike drippers, the KozyFill adds water to the bird bath only when water is needed. Air pressure forces water from the reservoir to rise to the same height in the bird bath. To clean your bird bath, simply dump the water and the KozyFill refills it. The KozyFill ensures that your bird bath never runs dry, even if you're on vacation. The KozyFill is simple to set up in five easy steps and it is made of durable materials to resist corrosion and scale build up. The water supply line is hidden in the pedestal of the bird bath for a clean uncluttered look. The KozyFill comes complete with fully assembled reservoir, 36-inch mounting pole, faucet Y-coupler with shutoffs, and 50 feet of tubing.