There are a couple of good reasons for this.
External pond filter with uv light.
Know need to open the canister exept to change sponge every 2 years.
Water is sent from the pump in the pond through these filters and then back into the pond either directly or through a waterfall bio falls filter.
Dynamic power cpf 250 filter.
In addition the pond pump and filter gives you three fountain options and includes a uv clarifier and automatic led spotlight.
Placed outside of pond tank.
More product details close.
These filters typically can be installed in the ground or above ground next to the pond.
Aquascape 95053 ultraklean 2000 gallon biological pressure filter with 14 watt uv clarifier sterilizer for pond water feature 2 700 gph 4 1 out of 5 stars 107 271 98 271.
This filter is designed to be used in conjunction with a water pump to clean and clarify your pond water.
External aquatic pond filter with uv.
All in one single 594 gph pond filter with uv newly designed this completely submersible newly designed this completely submersible unit cleans and maintains a healthy pond fountain or water garden.
Aquascape 95053 ultraklean 2000 gallon biological pressure filter with 14 watt uv clarifier sterilizer for pond water feature 2 700 gph 4 1 out of 5 stars 107 271 98 341 48.
In fact a lot of the biological filters that have a uv light built in place this uv light after the filter itself.
The beckett uv9 pond filter helps to reduce the beckett uv9 pond filter helps to reduce green water in ponds.
The uv light works more efficiently when the water flowing along it is clearer.
This filter emits germicidal uv light to over expose free floating algae.
This filter is recommended for ponds up to 600 gallons.