The Rena OEM pond filter kits consists of a submersible filter with two grid filters, 15 Bio Balls, and one each Carbon Filter pad and White Micro-Filter pad. Combined this makes a very strong filtration system for ponds up to 700 gallons. These pond filters can be combined to increase filtration for larger installations. Each unit is made of heavy-duty plastic which can withstand many months under water without cracking. Specifications: Dimensions in: 12 x 12 X 3-1/2 High Filtration: 2 Filter Grates, Carbon Filter, White Micro Filter, 15 Bio Balls Removable Tubing Fitting on Front Corrugated 12 inch length of tubing supplied Pump Fitting that fits some brands of pumps Convenient snap on handle for easy removal.
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