Cloudy, dirty water and strong algae growth are common problems in ponds. These problems are caused by floating particles due to an excessive supply of nutrients, dead plants, over-fertilized soil, acid rain, fish excrement and left-over food. These particles produce ammonia which is harmful to all living beings. OASE's unique Biotec Filter System transforms ammonia into nitrite using a natural process. The nitrite is then changed into harmless nitrate. Nitrate actually constitutes a healthy nutrient conducive to plant growth. The mechanical filtration process is carried out by various structured foam filters, the biological process through naturally occurring bacteria that settle on bio-elements. This filter will not eliminate blanket weed (string algae). Not for use in swimming pools or salt water. Another unique feature of the Biotec Screenmatic Filter System is ideal for large particulate removal. Special tool (included) allows for filter sponge cleaning without removal from the filer. Screenmatic surface is automatically flushed as screen rotates debris are rinsed away.

Biotec 36 Part Number 50119 Application Above ground, gravity discharge No. of Filter Mats 36 No. of Filter Foams - Blue 18 No. of Filter Foams - Red 18 Max. Effective Pond Volume for Decorative Ponds - No Fish (gallons) 37000 Max. Effective Pond Volume for Ponds with Normal Fish Stocking Levels (gallons) 18000 Max. Flow Rate (GPH) 6000 Inlet Hose Adapter 2 x 1-1/2" threaded (1-1/2" tubing adapters included) Discharge Size 3.94" Dimensions (L x W x H) 47 x 32 x 30" 

Manufacturer's Warranty 3 years (excluding filter pads)