{"product_id":"fluval-flex-2-0-poly-carb-cartridges","title":"Fluval Flex 2.0 Poly-Carb Cartridges","description":"\u003cp\u003eThe \u003cstrong\u003eFluval Flex 2.0 Poly-Carb Cartridge\u003c\/strong\u003e keeps your Flex 2.0 aquarium clear with genuine 2-in-1 mechanical and chemical filtration in a single drop-in cartridge. A dense polyester pad traps floating debris and fine particles, while the carbon-impregnated layer removes dissolved toxins, discoloration, and odors for clean, polished water. This value 3-pack keeps replacements on hand for a quick, mess-free swap. Browse our \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/filter-media-cartridges\" style=\"color:#666;font-weight:600;text-decoration:underline;\"\u003efilter media and cartridges\u003c\/a\u003e for the rest of your maintenance kit.\u003c\/p\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Fluval replacement cartridge for the Flex 2.0\u003c\/li\u003e\n\u003cli\u003e2-in-1 mechanical and chemical filtration in one cartridge\u003c\/li\u003e\n\u003cli\u003ePolyester pad traps floating debris and fine particles\u003c\/li\u003e\n\u003cli\u003eCarbon removes toxins, discoloration, and odors\u003c\/li\u003e\n\u003cli\u003eEco-friendly, carbon-impregnated polyester design\u003c\/li\u003e\n\u003cli\u003eConvenient value 3-pack\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFluval Flex 2.0, 9 US gal \/ 34 L (item #15050)\u003c\/li\u003e\n\u003cli\u003eFluval Flex 2.0, 15 US gal \/ 57 L (item #15052)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eHow to Use\u003c\/h3\u003e\n\u003cp\u003eSlide the used cartridge out of the rear filter chamber and drop in a fresh one. For best results, replace the cartridge every 2 to 4 weeks, since the carbon is most effective for about a month. Replace it separately from your biological media so you never remove all your beneficial bacteria at once.\u003c\/p\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;margin:6px 0 4px;font-size:0.95em;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:6px 10px;background:#f6f6f6;font-weight:600;\"\u003eMedia\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:6px 10px;\"\u003ePolyester (mechanical) plus carbon (chemical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:6px 10px;background:#f6f6f6;font-weight:600;\"\u003ePack size\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:6px 10px;\"\u003e3 cartridges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:6px 10px;background:#f6f6f6;font-weight:600;\"\u003eFits\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:6px 10px;\"\u003eFluval Flex 2.0, 9 gal and 15 gal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:6px 10px;background:#f6f6f6;font-weight:600;\"\u003eReplace\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:6px 10px;\"\u003eEvery 2 to 4 weeks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:6px 10px;background:#f6f6f6;font-weight:600;\"\u003eWater type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:6px 10px;\"\u003eFreshwater and saltwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eRecommended Pairings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/fluval-flex-2-0-aquarium-kits\" style=\"color:#666;font-weight:600;text-decoration:underline;\"\u003eFluval Flex 2.0 Aquarium Kit\u003c\/a\u003e — the aquarium these cartridges are made for.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/fluval-foam-filter-block-for-spec-evo-flex-betta-aquarium-kit\" style=\"color:#666;font-weight:600;text-decoration:underline;\"\u003eFluval Foam Filter Block\u003c\/a\u003e — the matching mechanical foam for the Flex 2.0 9 gallon.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/maintenance-water-care\" style=\"color:#666;font-weight:600;text-decoration:underline;\"\u003eWater care and conditioners\u003c\/a\u003e — keep spare media and treatments stocked.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow often should I replace the cartridge?\u003c\/strong\u003e Every 2 to 4 weeks. The activated carbon is most effective for about a month, after which it stops adsorbing new toxins.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShould I change all my media at once?\u003c\/strong\u003e No. Swap the cartridge on its own so your biological filtration and beneficial bacteria stay intact.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich Flex does this fit?\u003c\/strong\u003e The Fluval Flex 2.0 in both the 9 gallon and 15 gallon sizes. The original Flex uses different media.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need to rinse it first?\u003c\/strong\u003e A quick rinse under dechlorinated water before installing helps clear loose carbon dust, but it is not required.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"3-Pack","offer_id":48910480015579,"sku":"A1407","price":12.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_d4fdadb9-60bf-4024-9503-db091a5ac28b.jpg?v=1782473091","url":"https:\/\/squeakysaquatics.com\/products\/fluval-flex-2-0-poly-carb-cartridges","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}