The pond boss Fish Spitter, with a blue color finish, is a decorative way to add aeration to your water feature. The spitter adds oxygen to the water to create an optimal, thriving environment for plants and fish. This fun accent for your pond is made from durable resin for longevity and is compatible with 3/8 and 1/2 inch ID tubing (tubing not included). Works with 75-450 GPH fountain pumps.