Whisper IQ filters use StayClean technology for easier maintenance and healthy fish. A sound barrier decouples motor from filter to give you the quiet you've always wanted. With better materials and impeller upgrades, these filters are made to last. It's time for a filter that's easy to use and easy to clean! Whisper IQ technology gives you a filter that does the job while staying quiet. The SoundShield provides a barrier between the motor and filter to minimize noise. Combine that with vibration dampening technology and these filters give you quiet power to keep your tank clean.