Features: Help keep water beautifully clear. The external filter cotton board can effectively filter impurities, keep pump clean and lengthen the service life. Cotton materials, which is durable and reliable. Easy to install, convenient to clean and replace filter cotton plate. It is suitable for users in homes, offices, hotel and other place who use pumps. Our filter can be widely used in waterscape facilities such as fish tanks, flower pond and fountains to ensure a clear and clear water quality and provide a healthy environment. Suitable for Change#1#2#3. Specifications: Component:Plastic+Activated Carbon+Cotton Size A: Approx.11.6x12cm/4.57x4.72inch Size B: Approx.15x11cm/5.91x4.33inch SizeC: Approx.6.89x6.10inch Quantity: 2Pcs Package Includes: 2Pcs Filter Pad note: 1.Please allow 1-2cm errors due to manual measurement, note that you donot mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.