All in one CUP-139 28W Pond Pump with 13w UVC Clarifier and Fountain Head Pre assembled aquarium uv sterilizer requires no additional pump or plumbing Suitable for both freshwater & saltwater & pond use Power: 110v/60hz Adjustment valve for regulating flow to fountain head and/or auxiliary water feature 13 watt ultraviolet sterilizer - kills free floating algae, bacteria and parasite