 The Cal Pump BF1000 to BF4000 Biological Pond Filter range incorporates a 5 step valve that allows you to select one of the following options: (1) Normal biological filtration ... (2) Stop, so that maintenance can take place ... (3) Medical bypass ... (4) Back flush for easy and quick pond filter cleaning ... (5) Pond Drain that allows easy pond water changes.
Biological filters are installed in a pond to aid in the ecological balance of the water. Beneficial bacteria colonize inside the filter and help convert harmful ammonia to nitrites, and then to nitrates, which is food for aquatic plants.
With a Cal Pump filter in your pond, you can have a clear, beautiful and healthy environment for your fish.
These filters are sized according to the volume of water in your pond. Constructed of heavy-duty perforated pipe, these filters provide maximum flow of water through the media.
- BF1000 For ponds up to 1000 gallons
- BF2000 For ponds up to 2000 gallons
- BF4000 For ponds up to 4000 gallons
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