Aquarium equipment -aquarium filter bag Highlights generic brand aquarium filter bag Description: Made from safe polyester fiber and does not affect the water quality PH value, TDS, KH, GH. Good permeability, can remove excess food, detritus, organic waste and other particles to reduce ammonia and other unwanted substances. The reusable anbain can be used for about 1 year. Easy to rinse, can be washed by washing machine or by hand. Ideal for wet/dry filtration systems, pumps and dry filters. Eack pack comes with a filter bag and a filter mat. Specification: Material: Polyester Fiber Color: White Filter Coverage: 40x50cm/15.75x19.69 inch Filter Bag Size: Approx. 20x35cm / 7.87x13.80 inch Package includes: 2 Pieces Aquarium Filters Note: As the above size is measured by hand, the actual item size might be slightly different from the above size. Due to lighting effects, monitor settings etc. There could be a slight difference in the color tone of the pictures and the actual item.