Enhance the water quality in your pond and promote a healthy ecological balance with the smartpond 1200 Gallon UV Pond Filter. This pressurized Ultra Violet (UV) filtration system is designed for maximum cleaning efficiency and promotes the growth of beneficial bacteria in your pond through the use of included bio-balls and filter pads. The attached UV light keeps your pond crystal clear by cleaning the water of any algae producing bacteria that causes green water. This filter is ideal for ponds that are up to 1200-gal and fits 3/4-in or 1-in ID tubing. It is compatible with the following smartpond pump models: DP560, DP700UV, WP1200, and WPR2000.