Fluval 20g CO2 Cartridges - 3 Pack - A7541 - For Planted Aquariums

The Fluval 45g CO2 Disposable Cartridges are available in a pack of 3. These replacement cartridges are suitable for the Fluval Pressurized 45g CO2 Kit (17554). Cartridges are also available in a pack of 1 (17555, sold separately).