Jebao PU-18 UV Clarifier for Pond Aquarium Fish Tank, 18-watt
Enjoy the best possible pond water clarity with this in-line or standalone fixture. Multipurpose and versatile, this external-use pond ultraviolet clarifier features state-of-the-art magnetic ballast and a new space saving design. Add it to new or existing pond filtration systems. 22 ft power cord. All models measure 12" long.