Johnson Pump Cartridge Aerator 750 GPH 90 and No 176, Intake - 12V 750 GPH - 90 degree. Smaller profiles to fit in more confined spaces. Easy to change motor cartridge. Johnson Pump cartridge aerator pumps offer the ease of convenience and years of realiable service. Box Dimensions: 3"H x 9"W x 12"L. Weight: 1.2lbs.