["High Density Water Purification Aquarium Filter Pad Premium True Dual Density Media Roll for Crystal Clear Water Fish\n\nDescription:\nbrand new and high quality\nFeatures:\nThe top layer's open fiber construction traps larger particles while the bottom layer's dense fiber mesh traps fine particles.\nFilter pad is perfect for freshwater or saltwater aquariums as a prefilter for wet/dry filters, sumps, canister filters, aquaponics system, and much more.\nAquarium filter media roll is completely safe for all fish and other aquatic life and made without dyes.\n\nSpecification:\nType: Aquarium Filter Pad \nMaterial: Cotton\nApplications: Aquarium Fish for Tank Water Clean\nFeatures: Aquarium Filter Pad, High Density, Water Purification, Media Roll, Clear Water Fish for Tank Supplies\nDimension: \n12: app.12x100cm/4.72x39.37in\n20: app.20x100cm/7.87x39.37in\n30: app.12x100cm/11.81x39.37in\nColor: White\nQuantity: 1 Pc\n\nNote: \n1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.\n2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage includes:\n1 Pc x Aquarium Filter Pad"]