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 pet products, supply reviews Price: $9.25 Features • fits Penguin Bio-Wheel 170 & 330 • 6-pack • Rite-Size C [ + Zoom ]   [ Buy Now ] Pet Products : Usually ships in 1-2 business days Marineland Penguin Rite-Size Ready-To-Use Filter Cartridges Customer Reviews   1     2     3   ♥♥♥♥♥ Marineland Penguin Rite-Size Ready-To-Use Filter Cartridges I have 5 tanks and these are the ONLY filters I use. Why? Because they are the best.   1     2     3   Non User