Apollo Horticulture AH WP-60W2000 660-GPH Submersible Water Pump 1  Apollo Horticulture 60W Submersible Water Pump Pump Specs  AC: 110-120V / 60 Hz / 660-GPH / Decibles: 43 Pump Dimensions: 4.50x 4x 4.50 Interchangeable Screens for Maximum Flow or Controlled Water Flow Package Includes: 1  Apollo Horticulture Water Pump / 1  Max Flow Screen / 1  Hose Fitting