Keep crystal-clear, clean water flowing through your above ground pool with the Bestway 2,200 gal. Sand Filter Pump! This powerful pump lasts longer and requires less maintenance than a traditional filter cartridge pump. It uses either silica sand or Bestway Polysphere Pool Filtration Balls (neither included) to filter debris out of your pool, and includes a pre-filter strainer basket to catch larger items and increase the pump's efficiency and longevity. Compatible with most above-ground pools, between 300 and 14,400 gallons Pump capacity of 2200 gallons per hour Pre-filter strainer catches larger particles to protect the pump impeller and ensure a longer life span Durable, corrosion-resistant filter tank Pre-assembled with a top flange clamp that allows 360° rotation for quick and smooth installation Requires silica sand or Bestway Polysphere Pool Filtration Balls (not included)