This is not a genuine EHEIM product, but is made from the same material to the same specifications. They are designed to provide identical performance.
Custom-made to fit the Eheim Classic 350
Capture particles and debris for effective mechanical filtration while providing better biological filtration.
Quoted price is for 1 x black carbon filter pad
Activated carbon cotton: diameter 12.5cm, 16.5cm, 18cm, thickness 0.8cm