Packing include: 12pcs bio sponge
Change every 3-4 weeks
Custom designed and manufactured for Penn Plax Cascade 300 Internal Filter
Optimizes the colonization of beneficial aerobic bacteria removes ammonia and nitrites keeping your aquarium clean and healthy
This is not a Penn Plax product and is not covered under any Penn Plax manufacturer's warranty. The Penn Plax brand names and logos are the registered trademarks of their respective owners. Any use of the Penn Plax brand name or model designation for this product is made solely for purposes of demonstrating compatibility