【Small Fish Tank Filter Overflow Box】Aquarium Hang On Filter, external hanging fish tank top filter box quietly delivers clear water flow throughout the aquarium. Suitable for freshwater and saltwater aquariums. 【Easy to Use】Aquarium Filter is designed with slide out drawer type drip tray, easy access to change filter pads and effortless maintenance. 【Efficient Filtration Filter】Aquarium Filter Box offers a continuous filtration system that ensures your aquarium stays clean and healthy for your aquatic pets. 【Waste Removal】This small fish tank filter box is capable of absorbing fish waste, contributing to a cleaner and more hygienic environment for your aquatic life. 【3 Sizes】Aquarium drawer filter box with three sizes to choose from, you can choose according to your needs. Easy installation, turtle tank water purifier drip flow box, practical fish tank accessory, aquarium circulation water cleaning tool. Specification: Color: Black Material: ABS Size Chart: Single Layer: 16cmx12cmx10cm/6.30inchx4.72inchx3.94inch or Double Layer: 16cmx12cmx20cm/6.30inchx4.72inchx7.87inch or Three Layer: 16cmx12cmx26cm/6.30inchx4.72inchx10.24inch Package Includes: 1 Aquarium Hang On Filter Box Note: Please allow slightly errors 1-2cm differences due to manual measurement.