Enhance the cleanliness and health of your aquarium with Eheim's 3pc Coarse Filter Pad. Designed for use in both fresh and saltwater tanks, this pack of replacement foam pads provides effective mechanical and biological filtration for EHEIM filters 2226, 2326, 2228, 2328, 2026, 2126, 2028, and 2128. Reusable and bacteria-friendly, these pads help maintain optimal water quality for your aquatic pets.