Why disturb your students (and your aquatic specimens) with a loud, obtrusive filter? -- This popular model has three distinct systems designed to keep your tank sparkling clean. -- * First, mechanical filtration traps suspended waste. -- * Next, activated carbon filtration absorbs any dissolved contaminants. -- * Finally, aerobic biological filtration turns ammonia and harmful nitrates into non-toxic nitrates. -- The Bio-Bag™ filter cartridges are ready to use and simple to install. Please note: 45399-06 is a Tetratec Filter not a Whisper.

$13.50

Click here to buy from Edmund Scientifics.

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