Jebao In-pond Skimmer, Adjustable Depth, 14" to 34" Effective Pond Surface: 270 sq. ft. Installation Depth: 14 - 34 in Recommended Pump Capacity: 1600 to 3500 gph, Pump sold separately Pump Connection: 1 1/2 in threaded, Tubing Connector: 3/4in, 1 in, 1 1/4 in., 1 1/2 in. Dimensions (Dia. x H) - 13-3/4" x 14" to 34"