- Juwel 86424 filter sponge designed for aquariums, with 24W power and 438mm size - Provides efficient mechanical and biological filtration thanks to its homogeneous coarse-pore structure - Promotes the growth of beneficial bacteria to keep the water clean and healthy - Manufactured without the use of chemicals, preventing residues in the aquarium - Suitable for both freshwater and saltwater aquariums, compatible with Juwel filtration systems - Ensures a constant and uniform water flow, optimizing filter performance - Easy to install and maintain, ideal for maintaining water quality in home aquariums