The 'EXTENSION SET' will allow more versatility in extending the depth and reach of the filters Main Tube. It will also allow the use of extension tubes on the Whisper E, Jr., C, 10, 5-15, 20, 1 & 2 Power Filters if needed. sizes. Instructions For Use: For Aqueon QuietFlow 20, 30, 50, 55/75 Tetra Whisper Bio-Bag Disposable Filter Cartridges. I purchased a new whisper 40 power filter 3 weeks ago and it makes a loud humming and vibrating sound. Is there That is the equivalent of the Whisper 30 on the market. owners manual or instructions for TETRA WHISPER 20-60. shutrfly: The vibrations from those filters are unreal. I've never seen any other powerhead driven filter like it. I use mine now to cycle media in a bucket as i feel the vibration are just too much for the fish. Heck their too much for me. Lol. I don't not like the tetra whisper filters. Mine was not noisy, but it vibrated horrible out of Tetra Whisper 30-60 Filter - Duration: Save Money on Aquarium Filter Cartridges - Duration: Aqueon Led Pro 20 Filter - Duration: 7:19. Tetra Whisper 2-10i Power Filter Tetra Whisper Power Filters Filter 40 Model 2. Whisper In-Tank Filter 20i with BioScrubber for 10 - 20 gallon aquariums (25817) Tetra 25844 ReptoFilter 10i for Terrariums up to 20 Gallons, 3.7, $12.99 The instructions were a little confusing, but once I saw the bag of media (Carbon). Buy Tetra Aquarium Whisper, 20-40 Gallon Internal Power Filter at Walmart.com Tetra Aquarium Whisper, 20-40 Gallon Internal Power Filter. Average rating: 3.6 out of 5 stars, based on 10 reviews 10 reviews. Your feedback helps us make Walmart shopping better for millions of customers. OK. Find great deals on eBay for whisper 20 filter. Shop with confidence. Skip to main content. eBay Logo: Shop by category. Shop by category. Enter your search keyword Tetra Aquarium Whisper 40 Power Filter for 20-40 Gallon Aquariums. Brand New. Repair Kit Whisper® Air Pump 20 and 40. $11.04. Buy. Buy Whisper 20i In-tankFilter -