Description: 【Adjustable Extension Rod】: This aquarium filter box comes with a built in adjustable extension rod, allowing you to easily extend or retract it to fit various sizes of fish tanks, ensuring versatility and convenience for different aquarium setups 【Construction】: Crafted from PP material, this filter box is designed to withstand the aquatic environment while providing long term performance and reliability in maintaining clean water for your fish 【Compact】: This filter box is compact yet efficient, making it an ideal choice for small to medium-sized aquariums without taking up too much space 【Efficient Filtration System】: Designed as a top-mounted filtration system for aquariums, this device offers silent operation and effective water circulation to keep your tank's water clear and healthy for your aquatic pets 【Simple Packaging】: The product comes in straightforward packaging with a unit included per package, ensuring you receive exactly what you need without any unnecessary extras or complications 【Easy to Use】Aquarium Filter is designed with slide out drawer type drip tray, easy access to change filter pads and effortless maintenance Specification: Material:PP Size Chart: 24cmx8.5cmx9cm/9.45inchx3.35inchx3.54inch 30cmx9.5cmx10.5cm/11.81inchx3.74inchx4.13inch 38cmx10.5cmx11cm/14.96inchx4.13inchx4.33inch Package Includes: 1 Set Aquarium Filter Box Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.