Shrimp protection filter: The stainless steel basket protects the shrimp and fry from being sucked into the filter. High quality: Made of high quality stainless steel, it is not toxic, environmentally friendly, robust, durable and a long service life. Mesh: The mesh is very small so that small shrimps and fish are not sucked into the filter. < p >Easy to clean: If cleaning is needed, simply brush the dissolved dissolved out with your hand or a soft brush such as a toothbrush from the filter guard. Versatile :Ideal for tropical fish farms, koi ponds, sewage systems, cooling towers and other commercial and industrial systems. Features: Good choice for your aquarium percolator. Ideal for bio balls, activated carbon, ceramics and ammonia remover. Traps particles and debris, improves biological filtration ,prevents small inhabitants and babies from being built up in the filter. These intake strainer covers slide easily over the intake tube and keep any fish out of it. < p >Baby Description: The mesh of the filter cover is small, which can prevent weak juvenile shrimp from being inhaled and prevent large debris from being sucked into the filtration system. , the white rubber at the transition has a certain ductility. Filter cover specifications: 11G weight, small inner diameter of 12mm, suitable for a variety of waterfall filters Features: Material: Stainless Steel Size: 6.8 x 2.5 x 1.2cm / 2.67 x 0.98 x 0.47inch Inner Diameter: 12mm Color: Silver Package includes: 2 x Aquarium Filters Note: < p>1. Please allow 0-1cm errors due to manual measurement. Thank you for your understanding. 2. Monitors are not calibrated the same. Item color shown in photos may be showing slightly different from the real object. Please take the real one as standard.