Metal filter tube are great for aquarium 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.
Stainless Steel Filter Guards fit over the filterandamp;39;s intake pipe, not over the strainer. If your filter has an integrated strainer, these Filter Guards will not work without modification.
1 x Filter Guard (12mm)
onewiller Durable Aquarium Fish Tank Mesh Net Filter Guard for Fish Shrimp (Inner Diameter Approx.12mm) - B01MRHQ161