The Iwaki RLT type aquarium pumps handle back pressure better than RLXT pumps and can be used for almost any application. They are recommended for high-head situations or when using cartridge (pressure) filters. The MD pumps have Japanese motor.Flow rate: 420 gphMax head: 14.1 feetAmps: .48Dimensions: 8" X 3.5" X 4.2"Connections: 3/4" MPT Inlet / 3/4" MPT OutletDoes not come with a plugPerformance charts (new window)Further specifications (pdf file in new window)