Apollo Horticulture AH WP-26W1000 317-GPH Submersible Water Pump 1  Apollo Horticulture 26W Submersible Water Pump Pump Specs  AC: 110-120V / 60 Hz / 317 GPH / Decibles: 25 Pump Dimensions: 4x 3.50 3.50 Interchangeable Screens for Maximum Flow or Controlled Water Flow Package Includes: 1  Apollo Horticulture Water Pump / 1  Max Flow Screen / 1  Hose Fitting