Savior Bottom Feeder 20000 Gallon Pond Pump and Filter System: The patent pending Bottom Feeder Pond Filter is needed because of the overwhelming expense you're spending on pumping and filtering your pond water. The Bottom Feeder Pond Filter isn't just different; it's a better way to filter your pond. The Bottom Feeder finally gives you an opportunity to turn off your inefficient, noisy, and expensive to operate pond equipment... and it reduces your pollution which is better for our planet. The Bottom Feeder 40,000 Gallon Pond Pump and Filter System pumps up to 40,000 gallons a day through (3) three reusable filter cartridges. The Bottom Feeder Pond Filter is EASY and requires less maintenance than your existing pond filter.