--- product_id: 285757619 title: "Cascade 300 Power Filter – Hang-On Filter with Quad Filtration – Great for Freshwater and Saltwater Setups" brand: "penn-plax" price: "HK$1487" currency: HKD in_stock: true category: "Penn Plax" url: https://www.desertcart.hk/products/285757619-cascade-300-power-filter-hang-on-filter-with-quad-filtration store_origin: HK region: Hong Kong --- # 300 GPH flow rate Quad filtration media Adjustable flow knob Cascade 300 Power Filter – Hang-On Filter with Quad Filtration – Great for Freshwater and Saltwater Setups **Brand:** penn-plax **Price:** HK$1487 **Availability:** ✅ In Stock ## Summary > 💧 Elevate your aquarium game with the Cascade 300 — where clarity meets control! ## Quick Answers - **What is this?** Cascade 300 Power Filter – Hang-On Filter with Quad Filtration – Great for Freshwater and Saltwater Setups by penn-plax - **How much does it cost?** HK$1487 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/285757619-cascade-300-power-filter-hang-on-filter-with-quad-filtration) ## 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 - • **Sleek Hang-On Design:** Space-saving, secure mounting with an adjustable lift tube (8.25”–12.25”) that fits seamlessly into any freshwater or saltwater setup. - • **Powerful 300 GPH Flow:** Ensures crystal-clear water for tanks up to 100 gallons, keeping your aquatic ecosystem vibrant and healthy. - • **Quad Filtration System:** Activated Carbon, Poly Fiber Floss, Bio-Sponge, and Bio-Falls work in harmony to remove toxins, odors, and discoloration. - • **Customizable Water Flow:** Adjust the flow with an easy-turn knob—perfect for feeding times or delicate aquatic species. - • **Bio-Falls Oxygenation Boost:** Enhances water oxygen levels while naturally reducing harmful ammonia and nitrate for a thriving tank. ## Overview The Cascade 300 Power Hang-On Filter delivers a robust 300 GPH flow rate suitable for aquariums up to 100 gallons. Featuring an adjustable flow knob and a quad filtration system—including activated carbon, poly fiber floss, a bio-sponge cartridge, and Bio-Falls oxygenation—this filter efficiently removes toxins, odors, and discoloration. Its sleek, space-saving hang-on design with an adjustable lift tube fits both freshwater and saltwater tanks, making it a versatile and essential upgrade for any serious aquarist. ## Description Penn-Plax presents the The Cascade 300 Power Hang-On Filter quietly delivers crystal clear water throughout the aquarium. This filter pushes water at 300 Gallons per Hour (GPH) for tanks up to 100 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. The lift tube extends between 8. 25” (min) and 12. 25” (max). Please be aware that the filter indeed does make some noise. EXTREMELY BENEFICIAL: This Cascade filter utilizes disposable, double-sided media cartridges that contain Activated Carbon and 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. Media cartridges are recommended to be replaced once a month. REVOLUTIONARY: The Cascade 300 Power Hang-On Filter features a Bio-Sponge cartridge that optimizes colonization of anaerobic bacteria, and is independent from the first stage filter media. In addition, our Bio-Falls system enhances water oxygenation, and aids with removing ammonia and nitrate.OVERALL MEASUREMENTS: 8. 25” (H) x 11. 25” (W) x 6. 25” (D). ## Features - QUIET & EFFICIENT: The Cascade 300 Power Hang-On Filter quietly delivers crystal clear water throughout the aquarium. This filter pushes water at 300 Gallons per Hour (GPH) for tanks up to 100 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. The lift tube extends between 8. 25” (min) and 12. 25” (max). Please be aware that the filter indeed does make some noise. - EXTREMELY BENEFICIAL: This Cascade filter utilizes disposable, double-sided media cartridges that contain Activated Carbon and 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. Media cartridges are recommended to be replaced once a month. - REVOLUTIONARY: The Cascade 300 Power Hang-On Filter features a Bio-Sponge cartridge that optimizes colonization of anaerobic bacteria, and is independent from the first stage filter media. In addition, our Bio-Falls system enhances water oxygenation, and aids with removing ammonia and nitrate. - OVERALL MEASUREMENTS: 8. 25” (H) x 11. 25” (W) x 6. 25” (D) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0002DJ82G | | Allergen Information | Codfish Free | | Batteries Included | No | | Best Sellers Rank | #83,209 in Pet Supplies ( See Top 100 in Pet Supplies ) #5,317 in Aquarium Accessories | | Color | Clear blue | | Customer Reviews | 4.1 4.1 out of 5 stars (4,493) | | Date First Available | 7 August 2012 | | Item Form | Wet/Dry | | Item Weight | 0.28 g | | Item model number | CPF5 | | Number of Items | 1 | | Pet Life Stage | All Life Stages | | Pet Type | Fish and Aquatic | | Product Dimensions | 15.88 x 28.58 x 20.96 cm; 0.28 g | | Quantity | 1 | | Size | Cascade 300 | | Specific Uses | Indoor | | batteries required | No | ## Images ![Cascade 300 Power Filter – Hang-On Filter with Quad Filtration – Great for Freshwater and Saltwater Setups - Image 1](https://m.media-amazon.com/images/I/71HCWp6gcAL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Hey guys, what is the voltage? does it go from 110 v to 240v? i don't see it on amazon uk. if it doesn't work with 240v, what can i do? thanks.** A: Thanks for your question. This filter is 110V and there's no way to adjust it to 240V for England. We wouldn't recommend running this filter with a power converter, so your best bet may be to stop by your favorite local aquarium store to purchase your filter. **Q: I always buy the replacement carbon filters but where are the 2 black replacement foam sponge filters?** A: When I buy these filters I throw away the black foam.I used the white filter fiber works so much better..and gets your water clean and clear faster.. **Q: I have a 56 gallon tall tank and need a filter that works well in this type. Will this model work well in the tall tank type?** A: I think you will be happy with this filter. I am using one in my 200 gal fish tank I like it because 1. it is a good filter 2. It keeps the water oxygenated. ( lot's of bubbles ) :-) when I get my 75 gal tank ready I all ready have one for it. **Q: What is the KWH for the 300 per day?** A: idk but its probably not anything your going to notice ## Frequently Bought Together - Penn-Plax Cascade 300 Power Filter – Hang-On Filter with Quad Filtration – Great for Freshwater and Saltwater Setups - Penn-Plax Cascade 300 GPH Hang On Replacement Media for The Cascade 300 Filter, 3 Pack - Penn-Plax Cascade 300 GPH Hang On Filter Aquarium Bio Sponge Replacement; 2 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.hk/products/285757619-cascade-300-power-filter-hang-on-filter-with-quad-filtration](https://www.desertcart.hk/products/285757619-cascade-300-power-filter-hang-on-filter-with-quad-filtration) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-07-07*