Protective filters for shrimps and fish You will get 2 aquarium filters with an inner diameter of 16mm, suitable for pipes with an outer diameter of about 17mm.Mesh size The mesh size is very small and does not attract shrimp and fish into the filter. Suitable for aquariums and aquariums. EASY TO CLEAN When it’s time to clean, simply use your hand or a soft toothbrush-like brush to remove debris that has accumulated on the filter cover. Widely used in fish farms tropical plants, koi ponds, cooling towers and other commercial and industrial systems.High Quality Made of high quality stainless steel, non-toxic and not easy to break, no algae problems, non-toxic and harmless to fish, and can be used for a long time. Specifications: silver 500 g 8.8 x 3 x 3 cm.