Replacement BIO-Wheel Assembly for Penguin power filters. These parts fit the new Penguin power filter models.
The BIO-Wheel Assembly should be replaced only when damaged. The BIO-Wheel assembly houses beneficial bacteria necessary for efficient biological filtration in your aquarium. Unnecessary removal or replacement of the BIO-Wheel Assembly may compromise biological filtration in your aquarium. BIO-Wheel Assemblies available for Penguin Power Filter Model PF200B.