Oase BioTec ScreenMatic Multi-Stage Flow-Through Filters Model:BioTec Screenmatic2 18000 Boasts an amazing filtration capacity

Boasts an amazing filtration capacity relative to its size

Measures 18"L x 16"W x 10

reliable industrial grade pumps -- ideal for your pond

Includes an all-natural proprietary treatment blended with bacteria and enzymes

Includes cleaning indicator

Oase BioTec ScreenMatic Multi-Stage Flow-Through Filters Model:BioTec Screenmatic2 18000 Boasts an amazing filtration capacityThe Oase BioTec ScreenMatic Large Pond Filters are flow through biomechanical gravity filters with multi stage filters in a compact package, perfect for large ponds with high fish load. Mechanical filtration separates out particles and debris using a 300 micron mesh screen, which is cleaned automatically by the filter every 15 minutes! This advanced, innovative filter offers multiple innovative features such as automatic debris separation, double