Apollo Horticulture AH WP-45W1500 396-GPH Submersible Water Pump 1  Apollo Horticulture 45W Submersible Water Pump Pump Specs  AC: 110-120V / 60 Hz / 396 GPH / Decibles: 41 Pump Dimensions: 2.50x 4.50x 3.50 Interchangeable Screens for Maximum Flow or Controlled Water Flow Package Includes: 1  Apollo Horticulture Water Pump / 1  Max Flow Screen / 1  Hose