The PondKeeper System is an all-in-one, easy-to-install pond filtration system that is compact, energy-efficient and priced economically. This system is designed to give pond owners clear healthy water. Each of the components was carefully chosen to provide you with years of dependable service and clear water for you and your pond. Comes preplumbed on an all weather pad with all plumbing already done, media in the tank and ready to go. 2" union connections are at all fittings. Pad measures 36" x 48".