Aquarium Waterfall Filter Tank External Air Pump Sponge Activated Carbon Media Replacement Foam PadProvides mechanical filteration of large particlesPrevents premature cloggingEnhances biological filtrationSpecification :Brand : YaniModel : Yani AQ-M1Material : Filter Cotton, Activated CarbonColor : As picture showedSize : 13.5*5.3cm/5.31''*2.08''Package Includes :1 x Yani Activated Carbon PadDetails Pictures :