The Rio Seio Super Flow Model M620 Powerhead flow rate is 620 gph.Connections: no connectionsOnly 8 Watts, 15 watts less than the Rio 1700, which has about the same gph. This means less heat and less electricity usage for the same output.Dimensions: 5.5" H x 2.16" W x 2.6" D6 foot power cordMust be fully submersedCeramic shafts Durable high-impact plastic impellersPerformance charts (new window)Includes: 4 Suction Cups, 1 Adjustable 160 Swivel Side Discharge Hanging Bracket, 1 Adjustable Elevated Side Discharge Hanging Bracket, 1 Hang on the Tank vertical Mount, 1 Suction Cup Bracket, and 1 Bracket SaddleRecommended Accessories:Algae Free Sure Grip 50 Magnetic Powerhead Holder