Plastic bio ball filters are great for fish tank, to promote gas exchange and increase dissolved oxygen levels. Great for tropical fish farms, koi ponds, waste water systems, cooling towers, and other commercial and industrial systems. For use with wet/dry filters (here is not included), to improve biological filtration.
Plastic bio balls filter
Color: black; material: plastic
Ball Diameter: 32mm/ 1 1/4″
Weight: 14g
Package: 2 x bio balls filter
