Aquarium filter guard are great for aquarium fish tank, to promote gas exchange and increase dissolved oxygen levels.
Material: Stainless Steel 304
Mesh Size: 30mesh, or 60 mesh, or 100 mesh.
Size(LengthxWidth): 7x2.5cm(S), 8.5x3cm(L).
Inner Diameter: 12mm(S), 16mm(L).Package included:1pc x Aquarium Filter Guard
Small meshes make it able to be used to replace the inlet filter of outer filter or waterfall filter.
When cleaning is required, simply brush any accumulated debris off of the filter guard with your hand or a soft brush of some sort like a tooth brush.
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.