--- product_id: 17512386 title: "Penn-Plax Cascade 20 Power Filter – Mini Hang-On Filter with Quad Filtration – Great for Freshwater and Saltwater Setups, (Model: CPF6)" brand: "penn-plax" price: "€ 83.06" currency: EUR in_stock: true url: https://www.desertcart.at/products/17512386-penn-plax-cascade-20-power-filter-mini-hang-on-filter store_origin: AT region: Austria --- # 20 GPH flow rate Ultra-quiet operation Adjustable flow control Penn-Plax Cascade 20 Power Filter – Mini Hang-On Filter with Quad Filtration – Great for Freshwater and Saltwater Setups, (Model: CPF6) **Brand:** penn-plax **Price:** € 83.06 **Availability:** ✅ In Stock ## Summary > 💧 Elevate your aquarium game with whisper-quiet, crystal-clear flow! ## Quick Answers - **What is this?** Penn-Plax Cascade 20 Power Filter – Mini Hang-On Filter with Quad Filtration – Great for Freshwater and Saltwater Setups, (Model: CPF6) by penn-plax - **How much does it cost?** € 83.06 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/17512386-penn-plax-cascade-20-power-filter-mini-hang-on-filter) ## Best For - penn-plax enthusiasts ## Why This Product - Trusted penn-plax brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Custom Flow Control:** Adjust water flow easily to suit feeding or tank needs. - • **Quad Filtration Power:** Double-sided media cartridges trap debris, toxins, and odors effectively. - • **Whisper-Quiet Performance:** Enjoy peaceful aquatic ambiance with near-silent filtration. - • **Crystal Clear Water, Always:** Delivers 20 gallons per hour for pristine aquarium clarity. - • **Compact & Secure Hang-On Design:** Fits tanks up to 7 gallons with safe, space-saving mounting. ## Overview The Penn-Plax Cascade 20 Mini Hang-On Filter is a compact, efficient filtration system designed for freshwater and saltwater aquariums up to 7 gallons. Featuring a 20 GPH flow rate, adjustable flow knob, and disposable double-sided media cartridges, it ensures crystal-clear water by removing particulates, toxins, and odors quietly and reliably. Its secure hang-on design with an adjustable lift tube makes installation easy and space-efficient, perfect for maintaining a healthy aquatic environment. ## Description Penn-Plax presents the Cascade 20 Mini Power Hang-On Filter. This filter quietly delivers crystal clear water, and pushes water at 20 Gallons per Hour (GPH) for tanks up to 7 Gallons in size. It’s great for Freshwater and Saltwater aquariums. Accommodating: The adjustable flow knob allows for increased or decreased water flow at will, which is extremely helpful during feeding times, or use it as needed. The hang-on design is constructed for safe mounting. With a provided extension piece, the lift tube measures between 5” (min) and 6 1/2” (max). Extremely Beneficial: This Cascade filter utilizes disposable, double-sided media cartridges that contain Poly Fiber Floss. The included cartridge traps floating particulate matter, removes harmful chemicals and toxins, clears up discolorations, and reduces foul odors from your aquarium’s water. Overall Measurements: 4. 5” (H) x 3. 75” (W) x 3” (D). Shop Penn-Plax for All Your Pet’s Needs: Penn-Plax is a manufacturer and distributor of top quality pet supplies, who specialize in creating excellent pet products for animals, both great and small.Pour enough water to completely immerse impeller cover before turning filter on. Never run filter dry. ## Features - QUIET & EFFICIENT: The Cascade 20 Mini Power Hang-On Filter quietly delivers crystal clear water throughout the aquarium. This filter is used for tanks up to 7 Gallons in size. The filter pushes water at 20 gallons per hour(GPH), It’s great for Freshwater and Saltwater aquariums. - ACCOMMODATING: The adjustable flow knob allows for increased or decreased water flow at will, which is extremely helpful during feeding times, or use it as needed. The hang-on design is constructed for safe mounting. With a provided extension piece, the lift tube measures between 5” (min) and 6 1/2” (max). - EXTREMELY BENEFICIAL: This Cascade filter utilizes disposable, double-sided media cartridges that contain Poly Fiber Floss. The included cartridge traps floating particulate matter, removes harmful chemicals and toxins, clears up discolorations, and reduces foul odors from your aquarium’s water. It is recommended to change these disposable filters once a month. - Pour enough water to completely immerse impeller cover before turning filter on. Never run filter dry. - OVERALL MEASUREMENTS: 4. 5” (H) x 3. 75” (W) x 3” (D) - SHOP PENN-PLAX FOR ALL YOUR PET’S NEEDS: Penn-Plax is a manufacturer and distributor of top quality pet supplies, who specialize in creating excellent pet products for animals, both great and small. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00T6HPZFI | | ASIN | B00T6HPZFI | | Age Range Description | All Life Stages | | Best Sellers Rank | #45,972 in Pet Supplies ( See Top 100 in Pet Supplies ) #214 in Aquarium Filters | | Brand Name | Penn-Plax | | Color | black & Blue | | Customer Reviews | 4.1 4.1 out of 5 stars (1,648) | | Date First Available | June 22, 2015 | | Date First Available | June 22, 2015 | | Directions | Follow included instructions | | Included Components | Aquarium Filter | | Item Dimensions LxWxH | 3.5 x 5.2 x 4.8 inches | | Item Package Dimensions L x W x H | 5.28 x 5 x 3.74 inches | | Item Weight | 11.2 ounces | | Item model number | CPF6 | | Item model number | CPF6 | | Manufacturer | Penn Plax, INC. | | Manufacturer | Penn Plax, INC. | | Model Name | CPF6 | | Number of Items | 1 | | Product Dimensions | 3.5 x 5.2 x 4.8 inches; 11.2 ounces | | Size | Cascade 20 | | Specific Uses for Product | Indoor | | Target Audience Keyword | fish | | Warranty Description | Full Amazon Warranty | ## Images ![Penn-Plax Cascade 20 Power Filter – Mini Hang-On Filter with Quad Filtration – Great for Freshwater and Saltwater Setups, (Model: CPF6) - Image 1](https://m.media-amazon.com/images/I/81sBoa9EWyL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Does it come with a pre-filter? Also do the tetra whisper small cartridges fit?** A: It does not come with a pre-filter, but the fluval edge pre-filter fits pretty well. You just have to use some hot glue and glue it to the intake tube. As for the tetra cartridges, im not sure. I've been using some extra API crystal bio-chem zorb cartridges I have, which don't fit perfectly, but they work. **Q: What size should I get for my 3 gallon tank? Is this safe for a Berra fish?** A: In my opinion, this filter assembly Penn Plax Cascade 20 mini should do the job for up to a 7 gallon tank. This filter assy. has a flow control knob you can adjust the flow of filtration from slow to fast for fine adjustment of flow or for feeding time to shut off filtration while feeding so as not to filter the food out of water. This is a nice feature as you do not need to unplug the filter assy., while feeding, it bypasses a small amount of water and does not harm the pump. I really like the Cascade filters, I have two 300's on my 55 gallon tank. I believe your other question is it safe for a betta fish not Berra? When I started out with a one and a half gallon tank and one Betta, I asked at a fish store on Betta care and the store told me they don't need filtration or aeration and they only live a couple years if you are lucky. I didn't buy this info. because I put myself if a fish position not wanting to breathe and swim in my own waste. I used filtration, aeration and a small heater to keep a constant on temperature for the lil guy and it lived for five years! So I'd say the filter would be safe. Some say I do overkill, but I enjoy happy, healthy fish! I also use BettaSafe water conditioner to start off with also. I hope this helps you! **Q: Does the carbon side of the filter face the tank?** A: Yes. The flow of water should hit the white filter media first, then pass through the carbon, and out into the tank. **Q: can i use activated carbon and ceramic for the filter media?** A: No room for ceramic and carbon ## Frequently Bought Together - Penn-Plax Cascade 20 Power Filter – Mini Hang-On Filter with Quad Filtration – Great for Freshwater and Saltwater Setups, (Model: CPF6) - Penn-Plax CPF6C3 Cascade Hang-on Power Filter Replacement Media- Pack of 1 (3 count) - Penn-Plax Cascade Replacement Filter Cartridges CPF6C3 (9-Pack) --- ## 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.at/products/17512386-penn-plax-cascade-20-power-filter-mini-hang-on-filter](https://www.desertcart.at/products/17512386-penn-plax-cascade-20-power-filter-mini-hang-on-filter) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-08-25*