--- product_id: 12805154 title: "click here" brand: "penn-plax" price: "MOP$123" currency: MOP in_stock: true url: https://macau.desertcart.com/products/12805154-click-here store_origin: MO region: Macau --- # Safe for fresh & saltwater tanks Dual-stage chemical & bio filtration Compact 1.3x1.1x4.1 inch cartridge click here **Brand:** penn-plax **Price:** MOP$123 **Availability:** βœ… In Stock ## Summary > 🌟 Keep your aquatic ecosystem flawless β€” because your fish deserve the best! ## Quick Answers - **What is this?** click here by penn-plax - **How much does it cost?** MOP$123 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [macau.desertcart.com](https://macau.desertcart.com/products/12805154-click-here) ## 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 - β€’ **Compact Yet Mighty:** Small footprint fits perfectly in Small World filters for tanks up to 5 gallons. - β€’ **Always Ready Replacement:** 2-pack ensures you never run out of essential filter media when your tank needs it most. - β€’ **Effortless Aquarium Clarity:** Easy-install cartridges keep your aquatic world pristine without hassle. - β€’ **Dual-Action Filtration Power:** Carbon & zeolite combo removes toxins while bio sponge supports beneficial bacteria. - β€’ **Universal Fresh & Saltwater Use:** Engineered to perform flawlessly in both freshwater and saltwater environments. ## Overview Penn-Plax Small World Replacement Aquarium Filter Media (2 Pack) offers a scientifically formulated blend of carbon, zeolite, and bio sponge designed for Small World SWF1 filters. These compact cartridges efficiently remove ammonia, nitrites, nitrates, phosphates, discoloration, and odors, supporting both mechanical and biological filtration in freshwater and saltwater tanks up to 5 gallons. Easy to install and maintain, this 2-pack ensures continuous optimal water quality and a healthy aquatic environment. ## 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” ## 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 | | Best Sellers Rank | #46,155 in Pet Supplies ( See Top 100 in Pet Supplies ) #557 in Aquarium Filter Accessories | | Brand | Penn-Plax | | Brand Name | Penn-Plax | | Customer Reviews | 4.6 out of 5 stars 917 Reviews | | External Testing Certification | WQA | | Global Trade Identification Number | 00030172390050 | | Included Components | Penn-Plax Small World Replacement Aquarium Filter Media Cartridges (2 Pack) – Safe for Freshwater and Saltwater Setups, SWF1C | | Item Dimensions D x W x H | 1.1"D x 1.1"W x 4.1"H | | Item Type Name | Penn-Plax Small World Replacement Aquarium Filter Media Cartridges (2 Pack) – Safe for Freshwater and Saltwater Setups, SWF1C | | Item Weight | 4.54 g | | Manufacturer | Penn Plax | | Manufacturer Part Number | SWF1C | | Manufacturer Warranty Description | Full Amazon Policy | | Material | Plastic | | Material Type | Plastic | | Model Number | SWF1C | | Number of Items | 1 | | Product Benefits | Removes contaminants, clears discoloration, and reduces odors in aquariums | | Product Dimensions | 1.1"D x 1.1"W x 4.1"H | | Set Name | 2 Pack | | UPC | 742117635224 030172390050 | | Unit Count | 1 Count | ## Product Details - **External Testing Certification:** WQA - **Item Weight:** 4.54 g - **Material:** Plastic - **Product Benefits:** Removes contaminants, clears discoloration, and reduces odors in aquariums - **Product Dimensions:** 1.1"D x 1.1"W x 4.1"H ## Images ![click here - Image 1](https://m.media-amazon.com/images/I/81EFDXbCrlL.jpg) ![click here - Image 2](https://m.media-amazon.com/images/I/810gZRjxX5L.jpg) ![click here - Image 3](https://m.media-amazon.com/images/I/914KM0IULxL.jpg) ![click here - Image 4](https://m.media-amazon.com/images/I/81vGtW65S+L.jpg) ![click here - Image 5](https://m.media-amazon.com/images/I/81FbS9qsVqL.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. ## 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? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://macau.desertcart.com/products/12805154-click-here](https://macau.desertcart.com/products/12805154-click-here) --- *Product available on Desertcart Macau* *Store origin: MO* *Last updated: 2026-10-03*