10Pcs Fish Tank Filters Quick Permeability Evenly Split Shatter-proof Reduce Algae Oxygen Aeration Aquarium Filters for Filter Bucket. Description: With quick permeability and uniform diversion, these fish tank filters are effective in fishes oxygenation. To purify the water, these fish tank filters reduce algae growth and prevent blocking. These fish tank filters are constructed of pvc material. The length is 1.5cm, the width is 1.5cm and the height is 1.6cm. These fish tank filters are suitable for filter bucket, fish tank, fish pond and upper filter. Item Name: Fish Tank Filters Material: PVC Features: Evenly Split, Anti-broken, Shatter-proof Size Details: L: 1.5cm/0.59", W: 1.5cm/0.59", H: 1.6cm/0.63"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 10 x Fish Tank Filters