The Rite-Size C Marineland Penguin BULK Replacement Filter Cartridge (12-Pack) is for the Penguin Bio-Wheel 170, 200, 330 & 350 Power Filters
For best results, change every 2-4 weeks.
We've removed the product from the packaging. Doing this lowers the shipping cost, and we pass on the savings with a lower product price.
The Rite-Size C Marineland Penguin BULK Replacement Filter Cartridge (12-Pack) is for the Penguin Bio-Wheel 170, 200, 330 & 350 Power Filters. For best results, change every 2-4 weeks. We've removed the product from the packaging. Doing this lowers the shipping cost, and we pass on the savings with a lower product price.