Marineland Penguin Rite Size Ready Filter Cartridges Pet Supply. Pet Supply » All Pet Products » Tropical Fish » Ponds » Accessories » Equipment » Filter » Filter Cartridges Filter • Filter Pads Filter • Foam Inserts Filter • Filter Resins Filter • Filter Sleeves Filter • Filter Carbon Marineland Penguin Rite-Size Ready-To-Use Filter Cartridges buy bestselling pet products, supply find reviews, ratings, prices Price: $8.95 Features • fits Penguin Bio-Wheel 125 • 6-pack • Rite-Size B [ + Zoom ]   [ Buy Now ] Pet Products : Usually ships in 1-2 business days Non User