--- product_id: 2063017 title: "Tetra Whisper Internal Power Filter, Large Bio-Bag Filter Cartridges, 3-Stage Filtration, 20-40 gal" brand: "tetra" price: "S$76" currency: SGD in_stock: true category: "Tetra" url: https://www.desertcart.sg/products/2063017-tetra-whisper-internal-power-filter-large-bio-bag-filter-cartridges store_origin: SG region: Singapore --- # Ultra-activated carbon 3-stage filtration system 200 GPH motor power Tetra Whisper Internal Power Filter, Large Bio-Bag Filter Cartridges, 3-Stage Filtration, 20-40 gal **Brand:** tetra **Price:** S$76 **Availability:** ✅ In Stock ## Summary > 🐟 Silent power, pristine water—filter like a pro! ## Quick Answers - **What is this?** Tetra Whisper Internal Power Filter, Large Bio-Bag Filter Cartridges, 3-Stage Filtration, 20-40 gal by tetra - **How much does it cost?** S$76 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/2063017-tetra-whisper-internal-power-filter-large-bio-bag-filter-cartridges) ## Best For - tetra enthusiasts ## Why This Product - Trusted tetra brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Stay Clean™ Technology:** Reduces buildup and stabilizes pH for a healthier aquatic environment. - • **Space-Saving, Sleek Design:** Clips discreetly inside your tank, letting your décor shine. - • **Advanced 3-Stage Filtration:** Mechanical, chemical, and biological cleaning for crystal-clear water. - • **Whisper-Quiet 200 GPH Motor:** Powerful filtration without the noise—your fish will thank you. - • **Adjustable Clip for Custom Fit:** Easily adapts to any water level or tank setup. ## Overview The Tetra Whisper Internal Power Filter is engineered for 20-40 gallon aquariums, delivering quiet yet powerful filtration at 200 gallons per hour. Featuring large Bio-Bag cartridges with Stay Clean™ technology, it combines mechanical, chemical, and biological filtration to remove debris, odors, and toxins. Its space-saving design clips inside the tank, allowing placement just 1 inch from the wall, while an adjustable clip ensures perfect water level fit. Ideal for millennial aquarium enthusiasts seeking efficient, low-maintenance, and discreet filtration. ## Description The Tetra® Whisper® Internal Power Filter for 20- to 40-gallon aquariums uses large Tetra® Whisper® Bio-Bag® Filter Cartridges with Stay Clean™ technology. Tetra® filters feature quiet operation and effective three-stage filtration: mechanical, chemical and biological. The filter cartridge floss screens out dirt and debris. Ultra-Activated® carbon inside the filter cartridge removes odors and discoloration. Our premium wood-based carbon offers superior filtration power, clearing odors, tannins and dye more effectively than coconut shell-based filters. Finally, biological filtration works to eliminate toxic ammonia and nitrate. The powerful Tetra® Whisper® Internal Power Filter motor filters up to 200 gallons per hour. Stay Clean™ technology helps reduce buildup on aquarium glass, binds small particles to make them easier to filter, and helps stabilize pH to promote a clean, healthy environment for your fish. The Tetra® Whisper® Internal Power Filter’s space-saving design is easily hidden by aquarium décor and allows your aquarium to be positioned as close as one inch from the wall. The adjustable, universal clip allows for a variety of setups to easily adjust to high or low water levels. With quiet, convenient filtration hidden inside the aquarium, caring for your fish is easy and efficient. ## Features - INTERNAL POWER FILTER: Tetra Whisper Internal Power Filter for 20- to 40-gallon aquariums uses large Whisper BioBag filter cartridges that are easy to change. - QUIET 200 GPH MOTOR: The internal pump efficiently filters up to 200 gallons per hour. - POWERFUL FILTRATION: Water flows through the cartridge floss, trapping debris and fish waste, while Ultra-activated carbon helps remove odor and discoloration. - SPACE-SAVING DESIGN: Your aquarium can be 1” from the wall with the internal filter designed to clip directly on your aquarium wall and be hidden by décor. - EASILY ADJUSTABLE: Adjustable clip allows for a variety of setups to easily adjust to high or low water levels. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0002DHYH2 | | Best Sellers Rank | #1,322 in Pet Supplies ( See Top 100 in Pet Supplies ) #2 in Aquarium Filters | | Brand | Tetra | | Brand Name | Tetra | | Color | Black | | Customer Reviews | 4.3 out of 5 stars 22,409 Reviews | | EU Spare Part Availability Duration | 1 Years | | Global Trade Identification Number | 00046798258186 | | Included Components | Whisper In-Tank Filter 40i (upto 40 Gal) | | Item Type Name | Aquarium Filter | | Item Weight | 1.5 Pounds | | Manufacturer | Tetra | | Manufacturer Part Number | AQ-65818 | | Manufacturer Warranty Description | See label | | Material | 100% Polyester | | Material Type | 100% Polyester | | Model Number | AQ-65818 | | Product Style | CN | | Specific Uses For Product | Indoor | | Style | CN | | UPC | 046798258186 | | Unit Count | 1 Count | ## Images ![Tetra Whisper Internal Power Filter, Large Bio-Bag Filter Cartridges, 3-Stage Filtration, 20-40 gal - Image 1](https://m.media-amazon.com/images/I/81W+Z3JdNIL.jpg) ## Available Options This product comes in different **Size** options. ## Frequently Bought Together - Tetra Whisper Internal Filter 20 To 40 Gallons, For Aquariums, In-Tank Filtration With Air Pump - Tetra Whisper Bio-Bag Filter Cartridges For Aquariums - Ready To Use BLUE, Large, 3 Count (Pack of 1) - TetraFauna AquaSafe for Reptiles and Amphibians 3.38 Ounces, Aqua-Terrarium Water Conditioner, Makes Tap Water Safe --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sg/products/2063017-tetra-whisper-internal-power-filter-large-bio-bag-filter-cartridges](https://www.desertcart.sg/products/2063017-tetra-whisper-internal-power-filter-large-bio-bag-filter-cartridges) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-07-18*