Achieve optimal water quality in your aquarium with the Aquarium Internal Filter RS 138-E. This reliable internal filter is designed to provide efficient filtration and water circulation, ensuring a clean and healthy environment for your aquatic pets. With its compact size and easy installation, it is suitable for various aquarium sizes. The RS 138-E features adjustable flow rate and a multi-layer filtration system, effectively removing impurities and promoting biological filtration. Order now and provide your underwater companions with a pristine habitat!