Features: Maintain clear water effortlessly with this USB powered aquariums filter, featuring double models to reduce water changes while purifying debris and odors using reusable sponge technology. Designed for simple maintenance, its detachable waterfall styles structure includes visible impeller components and washable sponge that lasts 2 4 weeks between cleanings, compatibility with both freshwater and saltwater tanks. Ideal for pet owners raising delicate fish, shrimp, or turtles seeking a low noise environment, as this quiet filter operates without disturbing household. Perfectly suits 5 20 gallon tanks in homes aquariums, outdoor ponds, or decorative fishbowls, where its adjustable airflows adapter creates gentle currents for stress sensitive species and water circulations. Engineered with durability ABS materials, this filter combines energies efficient USB operations with spill proof safety, ensuring year round oxygenation and waste filtration for thriving ecosystem. Specifications: Color:Four Choices Dimension:115×32×40mm/4.52×1.25×1.57in 138×32×40mm/5.43×1.25×1.57in 58×32×40mm/2.28×1.25×1.57in 98×32×40mm/3.85×1.25×1.57in Component:ABS Package Includes: 1Set Aquariums Water Pumps note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.