{"product_id":"penn-plax-cascade-hang-on-filter-cartridges-3-pack-cpf3-cpf4","title":"Penn-Plax Cascade Hang-On Filter Cartridges – 3 Pack (CPF3\/CPF4)","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe Penn-Plax Cascade Hang-On Filter Replacement Cartridges come in a convenient 3-pack designed to fit Cascade 150 and Cascade 200 GPH hang-on filters. Each cartridge uses activated carbon paired with a poly-fiber floss barrier to support clear, healthy water in both freshwater and marine aquariums. This pack is crafted for ongoing filtration and can be a practical addition to routine maintenance.\u003c\/p\u003e\n\u003ch3\u003eWhat makes these cartridges effective\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eActivated carbon filtration helps reduce odors and water discoloration by trapping pollutants in the carbon pores.\u003c\/li\u003e\n  \u003cli\u003eThe poly-fiber floss barrier screens out particulate matter and debris, providing an extra layer of filtration for a cleaner tank.\u003c\/li\u003e\n  \u003cli\u003eNo assembly required and simple installation into the internal tray of the hang-on filter, saving time and avoiding mess.\u003c\/li\u003e\n  \u003cli\u003ePrecisely measured to fit Cascade 150 or 200 filter trays, minimizing gaps and ensuring filtration stays in the water column.\u003c\/li\u003e\n  \u003cli\u003eDesigned to last roughly 6 to 12 weeks under typical tank conditions, with freshwater and marine compatibility noted.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReal-world use scenarios\u003c\/h3\u003e\n\u003cp\u003eIn a busy community tank, these cartridges can help maintain clearer water and a more stable aquatic environment. Aquarists often report visible improvements in water clarity within 24 hours, especially when used with the corresponding Cascade filter models CPF3 and CPF4. With regular changes, the filtration can support ongoing tank health without frequent manual intervention.\u003c\/p\u003e\n\u003ch3\u003eCompatibility and value\u003c\/h3\u003e\n\u003cp\u003eEach 3-pack is built to work with Cascade 150 and Cascade 200 filters. For other Cascade hang-on models, Penn-Plax offers separate three-pack cartridges (CPF6C3 for Cascade 20, CPF1C3 for Cascade 80, CPF2C3 for Cascade 100, CPF34C3 for Cascade 150\/200, CPF5C3 for Cascade 300) — use the appropriate replacement for your unit. This pack provides steady filtration needs and helps reduce the frequency of replacements while keeping the tank environment balanced.\u003c\/p\u003e\n\u003ch3\u003eWhat you get\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eThree replacement cartridges suitable for freshwater and saltwater tanks.\u003c\/li\u003e\n  \u003cli\u003eGoes directly into the Cascade filter tray with no extra assembly required.\u003c\/li\u003e\n\u003c\/ul\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 Cascade filters do these cartridges fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They fit Cascade 150 and 200 GPH hang-on filters CPF3 and CPF4.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long do the cartridges last?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Typically 6 to 12 weeks depending on tank conditions and bioload.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Penn-Plax","offers":[{"title":"Default Title","offer_id":53558493708617,"sku":"B0002DJCFY","price":24.28,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/1781\/9465\/files\/penn-plax-cascade-hang-on-filter-cartridges-pack-front.jpg?v=1766411858","url":"https:\/\/petvita.co.uk\/products\/penn-plax-cascade-hang-on-filter-cartridges-3-pack-cpf3-cpf4","provider":"Petvita","version":"1.0","type":"link"}