{"product_id":"blueflo-s7m120-pool-filter-cartridges-inner-outer-set-for-sta-rite-sr300-system-3-s7m120-pentair-300-sq-ft","title":"BLUEFLO S7M120 Pool Filter Cartridges – Inner \u0026 Outer Set for Sta-Rite SR300, System 3 S7M120, Pentair 300 sq ft","description":"\u003ch2\u003eUpgrade Your Pool Filtration with BLUEFLO S7M120\u003c\/h2\u003e\n\u003cp\u003eMeet a two-in-one filtration solution designed to refresh your pool water without overhauling your system. The BLUEFLO S7M120 inner and outer cartridge set is engineered to fit multiple popular configurations, including System 3 S7M120, Sta-Rite 25021-0200S\/25022-0201S, SR300, and Pentair 300 sq ft units. This pairing provides a balanced approach to filtration, pairing fine capture with robust surface area for longer intervals between cleans.\u003c\/p\u003e\n\u003cp\u003eIn everyday use, you’ll notice the difference when skimming or vacuuming reveals fewer visible particulates and a consistently clearer pool. While results depend on your pool conditions and maintenance routine, this replacement set is designed to support cleaner water and easier upkeep across a season or two of use.\u003c\/p\u003e\n\u003ch3\u003eWhat’s in the set and how it helps\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cstrong inner filter:\u003e Outer diameter 8-3\/4\" and length 25-1\/4\"; filtration area around 100 sq ft. This section is tuned to trap smaller debris as water passes through.\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong outer filter:\u003e Outer diameter 16-1\/2\" and length 18-3\/4\"; filtration area around 200 sq ft. This larger section helps handle bulkier particles and contributes to overall filtration capacity.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe combination delivers a broader filtration footprint, which can translate to clearer water and a more stable balance of chlorine and other treatments over time.\u003c\/p\u003e\n\u003ch3\u003eMaterials, performance, and durability\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cstrong long life construction:\u003e High-density polyester fiber with excellent heat tolerance supports sustained performance in varying pool environments.\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong filtration efficiency:\u003e Trilobal fabric with more pleats increases surface area, helping capture hair, leaves, dust, sediment, and sand more effectively.\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong easy maintenance:\u003e The trilobal material is designed to release trapped impurities more easily during cleaning, helping you restore flow with less effort.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese features work together to keep your pool water looking clear and inviting, while offering a straightforward replacement experience when maintenance is due.\u003c\/p\u003e\n\u003ch3\u003eCompatibility and installation notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eReplaces Sta-Rite 25021-0200S \u0026amp; 25022-0201S System 3 S7M120 sets, and is compatible with SR300 and Pentair 300 sq ft configurations.\u003c\/li\u003e\n  \u003cli\u003eDesigned for easy swap with minimal disruption to your filtration cycle; follow your existing installation instructions for the best seal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhether you’re replacing aging cartridges or upgrading to longer-lasting components, this BLUEFLO set is built to integrate with common pool systems without requiring a different housing.\u003c\/p\u003e\n\u003ch3\u003eWhy choose BLUEFLO for your pool filtration\u003c\/h3\u003e\n\u003cp\u003eBeyond compatibility, the combination of high-density fibers and trilobal fabric aims to provide reliable filtration, easy cleaning, and durable performance. Consider this set as a practical upgrade that supports clearer water and smoother maintenance, with benefits that are possible results of better filtration rather than guaranteed outcomes.\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: What does the BLUEFLO S7M120 inner and outer set include?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It includes an inner and outer cartridge pair, designed for System 3 S7M120, compatible with Sta-Rite 25021-0200S\/25022-0201S and SR300.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What are the key benefits of BLUEFLO S7M120 cartridges?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: High-density polyester fiber and trilobal fabric with extra pleats offer strong filtration and easier cleaning, helping keep pool water clear.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"BLUEFLO","offers":[{"title":"Default Title","offer_id":48213718368500,"sku":"B0CRYBXPGH","price":356.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/6652\/0820\/files\/blueflo-s7m120-inner-outer-set.jpg?v=1778482080","url":"https:\/\/www.cerapatiogarden.com\/products\/blueflo-s7m120-pool-filter-cartridges-inner-outer-set-for-sta-rite-sr300-system-3-s7m120-pentair-300-sq-ft","provider":"Cera Garden","version":"1.0","type":"link"}