Aquarium Equipment -Guard Filter Highlights Generic Brand Guard Filter Metal filter tubes are perfect for aquarium fish tank, promote gas exchange and oxygen levels dissolved increase. Ideal for tropical fish farms, koi ponds, wastewater systems, cooling towers and other commercial and industrial systems. For use with wet/dry filters (here is not included), to improve biological filtration. Description: 100% brand new and fine quality An interesting way to keep your shrimp aquarium fish safe Small animals like most freshwater shrimp, invertebrates, as well as small fish and fry are at risk of being sucked into the large slots on most standard suction strainers When cleaning is needed, simply brush accumulated debris off the filter guard with your hand or a soft brush sort of like a toothbrush Inner Size (Dia. x H): 16mm x 85mm Note: Stainless steel Filter guards fit over the filter intake pipe, not over the strainer. If your filter has a built-in strainer, these Filter Guards will not work without modification. Package include: 1x Filter Guard