--- product_id: 294067216 title: "Penn-Plax Small World Replacement Aquarium Filter Media Cartridges (2 Pack) – Safe for Freshwater and Saltwater Setups, SWF1C" brand: "penn-plax" price: "₩71110" currency: KRW in_stock: true reviews_count: 5 category: "Penn Plax" url: https://www.desertcart.kr/products/294067216-penn-plax-small-world-replacement-aquarium-filter-media-cartridges-2 store_origin: KR region: South Korea --- # Optimized for freshwater & saltwater Dual-stage chemical & bio filtration Eco-friendly reusable cartridge design Penn-Plax Small World Replacement Aquarium Filter Media Cartridges (2 Pack) – Safe for Freshwater and Saltwater Setups, SWF1C **Brand:** penn-plax **Price:** ₩71110 **Availability:** ✅ In Stock ## Summary > 🌟 Keep your aquatic sanctuary flawless — because your fish deserve the best! ## Quick Answers - **What is this?** Penn-Plax Small World Replacement Aquarium Filter Media Cartridges (2 Pack) – Safe for Freshwater and Saltwater Setups, SWF1C by penn-plax - **How much does it cost?** ₩71110 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/294067216-penn-plax-small-world-replacement-aquarium-filter-media-cartridges-2) ## 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 - • **Universal Compatibility:** Perfectly engineered for Small World SWF1 filters and safe across freshwater and saltwater setups. - • **Always Ready, Always Fresh:** 2-pack ensures you never run out of premium filtration media when your tank demands it. - • **Biological Balance Booster:** Integrated bio sponge fosters beneficial bacteria, stabilizing your tank’s ecosystem naturally. - • **Effortless Aquarium Clarity:** Quick-swap cartridges keep your aquatic world crystal clear without hassle. - • **Advanced Chemical Filtration:** Carbon & Zeolite combo rapidly eliminates toxins, discoloration, and odors for pristine water. ## Overview Penn-Plax Small World Replacement Aquarium Filter Media Cartridges (2 Pack) deliver superior chemical, mechanical, and biological filtration for tanks up to 5 gallons. Featuring a scientifically formulated Carbon & Zeolite blend plus a bio sponge, these cartridges efficiently remove harmful contaminants, odors, and discoloration while promoting beneficial bacteria growth. Designed exclusively for Small World SWF1 filters, they are safe for both freshwater and saltwater environments, ensuring your aquatic habitat stays vibrant and healthy with effortless cartridge swaps. ## Description PENN-PLAX presents the Small World Replacement Aquarium Filter Media Cartridges. These Media Cartridges are specifically designed for Small Word Filters (Model SWF1), allowing for simple and easy media replenishment, and are for aquariums, tanks, and habitats up to 5 gallons. Cartridges come in a 2 pack. Furthermore, they’re safe for both Freshwater and Saltwater setups. Carbon & Zeolite Mixture: Supercharged with scientifically formulated Carbon and Zeolite Crystals, these replacement cartridges absorb ammonia, nitrites, nitrates, and phosphates in a fast and timely manner, along with removing harmful chemicals and toxins, clearing up discolorations, and reducing foul odors from your aquarium, tank, or habitat. Bio Sponge: In addition to the Carbon and Zeolite Crystals, these replacement media cartridges also contain a Bio Sponge for physical filtration of larger particulate matter, and biological filtration that optimizes the colonization of anaerobic bacteria. Cleaning & Maintenance: Before placing into your aquarium, tank, or habitat, please briefly rinse the media cartridge with warm water in order to remove Carbon or Zeolite dust. If not done before installation, the water could initially become dark or cloudy. Please Note: The Small World Replacement Media Cartridges (SWF1C) do not come with a Filter, Air Tubing, or an Air Pump – All Sold Separately. Measurements: Each Filter Media Cartridge measures 1.3” x 1.1” x 4.1” Review: Small World replacement filter cartridges 👍 Review: Excellent filter ## Features - Easy to install replacement cartidges for your Small World filters. - High quality carbon/zeolite cartridge for chemical filtration and a foam block filter for mechanical & biological filtration - Clears discoloration and removes harmful contaminants & odors. - Insures you have replacement cartridges when you need them. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00025655C | | Brand | Penn-Plax | | Customer Reviews | 4.5 out of 5 stars 884 Reviews | | Enclosure Material | Other | | External Testing Certification | WQA | | Global Trade Identification Number | 00030172390050 | | Included Components | 2 Replacement Aquarium Filter Media Cartridges | | Item Dimensions D x W x H | 28D x 28W x 104H Millimeters | | Item Type Name | Replacement Aquarium Filter Media | | Item Weight | 0.01 Pounds | | Manufacturer | Monster Pets | | Manufacturer Part Number | SWF1C | | Material | Other | | Model number | SWF1C | | Number of Items | 1 | | Product Benefits | Removes contaminants, clears discoloration, and reduces odors in aquariums | | Product Dimensions | 28D x 28W x 104H Millimeters | | Set Name | 2-pack | | UPC | 742117635224 030172390050 | | Unit Count | 2.0 Count | ## Product Details - **External Testing Certification:** WQA - **Item Weight:** 5 g - **Material:** Other - **Product Benefits:** Removes contaminants, clears discoloration, and reduces odors in aquariums - **Product Dimensions:** 28D x 28W x 104H Millimeters ## Images ![Penn-Plax Small World Replacement Aquarium Filter Media Cartridges (2 Pack) – Safe for Freshwater and Saltwater Setups, SWF1C - Image 1](https://m.media-amazon.com/images/I/81FK-eXpEJL.jpg) ![Penn-Plax Small World Replacement Aquarium Filter Media Cartridges (2 Pack) – Safe for Freshwater and Saltwater Setups, SWF1C - Image 2](https://m.media-amazon.com/images/I/31Vc8EY0dRL.jpg) ## Questions & Answers **Q: does it work on 0.5 gallon tank with a betta** A: I use my PennPlax in a 5 gallon tank with a betta and it works great. I do partial water changes every 2 weeks. Are you asking if it works with a tank that hold 1/2 gallon? (0.5) If so, I would say NO. It is too strong for such a small space. Also, betta's should be kept in a MINIMUM 2.5; but 5 gal. or more is optimal, with heater and filter. **Q: I forgot to rinse it before installing it and all this white stuff came out-- is that okay? I'm only running it right now to cycle the tank (no fish.)** A: Hey Kristy, Thanks for your question. The white stuff you're seeing is just dust particles from the filter media. It won't have any negative effect on your tank. Just let it continue to cycle and all of the particles will be picked back up by the filter. **Q: How long is this filter and does it provide mechanical filtration?** A: It is about 4" long and works very well by pushing air/water through the filter material and charcoal. A good investment for small tank. (1-2) Gallon) Have been using one for about 15 years. Good product!! **Q: Will this work for a round bowl? No flat sides on mine** A: It can just lay on the bottom out of the way if your bowl is big enough. I have a little tank and just leave it without the suction cups and it works fine. You could also get a small sponge filter for your bowl. They both need an air pump to work and are about the same cost. Hope this helps. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Small World replacement filter cartridges 👍 *by S***E on 28 August 2020* ### ⭐⭐⭐⭐⭐ Excellent filter *by H***N on 17 July 2020* ### ⭐⭐⭐⭐⭐ Size *by G***L on 22 February 2023* ## Frequently Bought Together - Penn-Plax Small World Replacement Aquarium Filter Media (2 Pack) – Safe for Freshwater and Saltwater Setups, SWF1C - Blue Buffalo Bits Soft Dog Treats for Training, Made With Natural Ingredients & Enhanced with DHA, Beef Recipe, 19-oz Bag --- ## 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.kr/products/294067216-penn-plax-small-world-replacement-aquarium-filter-media-cartridges-2](https://www.desertcart.kr/products/294067216-penn-plax-small-world-replacement-aquarium-filter-media-cartridges-2) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-05-14*