Marineland Duetto Biological Filter Pad Sponge Duetto DJ-50

Marineland Duetto Biological Filter Pad Sponge Duetto DJ-50

Tetra Whisper Bio-Bag Cartridges complete the Whisper Power Filter package for a clean, easy-to-maintain aquarium. The Tetra Whisper Bio-Bag 8 and 12 packs come dissembled and offer economical pricing on larger quantities (1 and 3 packs come assembled). Easy to install & maintains a clean and healthy aquarium Large (Formerly Regular) fits - Whisper 20i, 40i, C, 20, 30, 40, & 60 Power Filters Bio Bag Large measures 7.5"L x 5"W It is recommended that you replace your Tetra Whisper Bio-Bag when water begins to overflow excessively from the Wonder Tube chamber. Filled with Ultra-Activated carbon, the ready-to-use disposable single packs remove waste particles, odors and discoloration, and are easily changed once a month. Note:?These "Large" Bio-Bags were formerly known as "Regular."