{"product_id":"penn-plax-filt-a-carb-replacement-media-cartridges-2-pack-fits-undertow-perfecto-perfect-a-flow-filters","title":"Penn-Plax Filt-a-Carb Replacement Media Cartridges (2 Pack) | Fits Undertow \u0026 Perfecto Perfect-A-Flow Filters","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eKeep your aquarium water clear and your fish thriving with the Penn-Plax Filt-a-Carb Replacement Media Cartridges. This 2-pack is designed to fit the lift tubes of Undertow and Perfecto Perfect-A-Flow filters, delivering convenient chemical filtration that supports a healthy tank environment without guesswork.\u003c\/p\u003e\n\n\u003ch3\u003eHow it works\u003c\/h3\u003e\n\u003cp\u003eActivated carbon in the cartridges adsorbs pollutants as water passes through, helping reduce odor and discoloration while targeting compounds that can cloud water. The result is a tank that looks more natural and can be more pleasant to observe, especially during routine feeding and decor changes.\u003c\/p\u003e\n\n\u003cp\u003eThe 2-pack design means you have ready replacements on hand, keeping maintenance straightforward for both new and experienced aquarists.\u003c\/p\u003e\n\n\u003ch3\u003eKey benefits you may notice\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eChemical filtration that helps manage ammonia, nitrites, nitrates, and phosphates as part of a regular maintenance routine.\u003c\/li\u003e\n  \u003cli\u003eRemoval of a range of chemicals and toxins that can affect water clarity and tank aesthetics.\u003c\/li\u003e\n  \u003cli\u003eReduction of discoloration and foul odors, contributing to a fresher, more inviting viewing experience.\u003c\/li\u003e\n  \u003cli\u003eLightweight and disposable design for easy handling and quick cartridge changes.\u003c\/li\u003e\n  \u003cli\u003eSafe for both freshwater and saltwater setups, making them a versatile option for mixed tanks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBest-practice tips\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eReplace cartridges every 2 to 4 weeks for best performance and consistency.\u003c\/li\u003e\n  \u003cli\u003eInstall in Undertow or Perfecto Perfect-A-Flow lift-tube systems to maintain optimal flow.\u003c\/li\u003e\n  \u003cli\u003eKeep spare cartridges on hand to minimize downtime during routine maintenance.\u003c\/li\u003e\n  \u003cli\u003ePerformance may vary with feeding schedules and tank bioload; adjust replacement timing accordingly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAbout Penn-Plax\u003c\/h3\u003e\n\u003cp\u003ePenn-Plax is a trusted name in pet supplies, offering practical solutions for aquatic environments and other animals. The Filt-a-Carb cartridges reflect reliability, ease of use, and compatibility with popular filter systems.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which filters do these cartridges fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They fit the Undertow and Perfecto Perfect-A-Flow lift-tube filters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace them?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace every 2–4 weeks for best results.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Penn-Plax","offers":[{"title":"Default Title","offer_id":53561624297801,"sku":"B00A2UMVJQ","price":17.72,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/1781\/9465\/files\/penn-plax-filt-a-carb-replacement-media-cartridges-pack.jpg?v=1766449994","url":"https:\/\/petvita.co.uk\/products\/penn-plax-filt-a-carb-replacement-media-cartridges-2-pack-fits-undertow-perfecto-perfect-a-flow-filters","provider":"Petvita","version":"1.0","type":"link"}