Sized for Compact Savio Skimmerfilters; Maximum pump flow: 2,500 gph per bulb; 18 watts; 120 Volts/ 60hz; Brand new stainless model with new, advanced transformer; Effectively cleans green water algae without harmful chemicals; Easy to use and maintain; 12 ft. Power Cord; Max pond size: 2,500 gallons; Dimensions: 14.5"