Purchase this item and get 
Replacement foam cartridge for aquarium filters Cristal Profi i40 and TekAir.
Key Features:
β’Β Clear and healthy water: replacement foam cartridge for aquarium filters CristalProfi i40 and TekAir – round cross section with T-profile.
β’Β Use: add FilterStart. Usable for TekAir and CristalProfi i40.
β’Β Foam with ideal service life thanks to 25 ppi pores, effective mechanical and biological filtering.
β’Β No release of harmful substances: 100% water neutral synthetic material.
