Living Pond waterfall by Savio instantly creates a stunning 22' waterfall. Runs at peak performance even when clogged. Requires much less upkeep than other filters. Comes with Spring Flo Bio Filter media. Top feed promotes the oxygenation of water and eliminates the need for check valve. Settling tank centrifugal distribution causes particles to settle out of the water column. BioFiltration bacteria cleans water converting wastes and rendering toxins inert. Top polishing mat polishes water for a final effect that gives a clear-as-glass appearance. For ponds up to 5000 gallons with 500-3000 gph pump.1-1/2" bulkhead. 5 Year Limited Warranty Choose from two models: Sav007 - Versatile filter: 2' pipe discharge for versatile placements away for ponds. Sav010 - Waterfall filter: Instant 22" waterfall Also available: Sav221- Filter Mat