High Quality Stainless Steel: Made of durable stainless steel and acrylic. The filter protection is not easy to rustThey are sturdy, compact and resistant to deformation. Ideal for long term use and replacement. Easy to clean: These aquarium filter protectors can be easily cleaned with soft brushes. If you only need to gently brush the small aquarium filters under running water, the accumulated residue will disappear in seconds. Easy to use: It is used to replace the outer inlet filter or the waterfall filter and other water inlet filter sleeves. The white rubber of the adapter is malleable. Protect shrimp and fish: The filter sleeve network is small, which can prevent small animals such as small shrimp and fish from being sucked into the filter and prevent large residues from being sucked in and clogging the filter system. Area of application: Ideal for tropical fish farms, ko carp ponds, sewage systems, cooling towers and other systems commercial and industrial. Properties: - Made of high quality stainless steel, it is non-toxic, environmentally friendly, sturdy, durable and has a long service life. - The filter cover mesh is small. It can avoid sucking small shrimp and fish. - If cleaning is required, simply brush the dirt that has accumulated by hand or a soft brush like a toothbrush from the filter guard. - Metal filter tubes are ideal for aquariums to promote gas exchange and increase dissolved oxygen content. - Widely used, the mesh filter guard is a great accessory for aquariums. Specification: Material: Stainless Steel Color: As the picture shown Size: Inner Diameter: 16mm Length: 8.5cm/3, 34 inch Scope of delivery: 3 * aquarium filter sleeves