Oase BioTec ScreenMatic Multi-Stage Flow-Through Filters Model:BioTec Screenmatic2 18000 Includes an all-natural proprietary treatment

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

8 colors: red

Includes cleaning indicator

through the multi-port valve and back down the return line into the pond

12 Blue 1512 33lb

Oase BioTec ScreenMatic Multi-Stage Flow-Through Filters Model:BioTec Screenmatic2 18000 Includes an all-natural proprietary treatmentThe 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