With the SunSun Upgrade Set 1, you can easily and conveniently upgrade your CBF-350 flow filter to a CBF-350B.

This expansion of the modular pond filter makes it suitable for garden ponds up to 60,000 liters, instead of just 12,000 liters as before.

This is important if you plan to enlarge your garden pond or if the single-chamber pond filter is not sufficient. All necessary parts, connections, and filter sponges are included in the delivery. The pond filter expansion adds approximately 60 liters. The chamber is equipped with a total of 2 coarse filter sponges, 2 fine filter sponges, and 1 Japanese filter mat.

Handling:
The pond filter is set up at the pond's edge and connected to a suitable pond pump (not included; please note the maximum volume capacity of the pond pump). Water is directed through the pond filter and cleaned before being returned to the pond.

Functionality:
Pond filters combine mechanical and biological cleaning. Microorganisms settle in the filter materials, removing germs and bacteria from the water. Suspended solids and dirt are retained in the pond filter through mechanical filtration and do not return to the pond water.