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Code expires 5/28/13
Whisper EX Bio Scrubber Replacement Cartridge
|The Tetra Whisper Bio Scrubber Cartridge is where nature takes its course. The Bio Scrubber is where the biological filtration takes place. Bristles provide more surface area for biological conversion of toxic ammonia and nitrites to harmless compounds. Engineered water flow path ensures water passes over entire surface for maximum contact.|