OASE Biosmart 5000 Gravity Filter

Gravity filters have to be located at the top of the waterfall source, not at the bottom of the pond or stream feature. Max Pond Size (no fish): 5,000 gal Max Pond Size (small fish): 2,500 gal Max Flow: 2,700 GPH Dimensions: 22" x 22" x 16" Outlet: 2.5" * Ideal for large ponds and water gardens * Deliver crystal clear water with very low maintenance * Uses biological and mechanical filtration to provide clean, biologically enriched water. * Built in Venturis add oxygen to the water as it enters the filter - maximizing biological filtration * Optional Ultra Violet Clarifier unit attaches directly to filter * 3/4" to 1 1/2" multi-barbed inlets