{"product_id":"pureplus-5-micron-20in-x-4-5in-whole-house-iron-manganese-filter","title":"PUREPLUS 5 Micron 20in x 4.5in Whole House Iron \u0026 Manganese Filter","description":"\u003cp\u003eIn this review the PUREPLUS 5 Micron 20in x 4.5in RFN20BB replacement cartridge is evaluated for homeowners dealing with well water or visible iron staining. The bottom line: this cartridge is for anyone who needs targeted removal of iron and manganese from whole-house supply and values a reusable resin element that can be restored. The reviewer found the cartridge to be straightforward to install as a drop-in replacement in compatible 20in housings and particularly effective at lowering iron and manganese to very low levels when used as part of a three-stage system.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIron and manganese removal:\u003c\/strong\u003e The reusable resin granule filter is designed to reduce iron from up to 3.0 ppm down to about 0.01 ppm and manganese from up to 1.0 ppm to about 0.01 ppm, improving water clarity and protecting plumbing fixtures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReusable resin element:\u003c\/strong\u003e The inner resin granules can be regenerated by soaking in salt water for 12 hours, extending the cartridge life and reducing replacement cost.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong service life:\u003c\/strong\u003e The cartridge is rated for roughly 6 months or 4,000 gallons of use before replacement, whichever comes first, for predictable maintenance scheduling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality tested:\u003c\/strong\u003e Manufactured under ISO9001 standards and subjected to multiple production checks, 400 PSI pressure tests, and 10,000 water hammer tests for durability under household conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhole house compatibility:\u003c\/strong\u003e Built for use in 20in x 4.5in whole-house housings and intended for a 3-stage filtration arrangement to protect downstream appliances and taps.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis cartridge is well suited for homeowners with private well water or municipal supplies showing elevated iron or manganese, and for families who want a whole-house solution rather than a point-of-use cartridge. Installers or DIYers who maintain a three-stage system will appreciate the targeted chemistry of the resin granules for iron and manganese reduction.\u003c\/p\u003e\n\u003cp\u003eIt is less appropriate for users needing multi-contaminant filtration in a single cartridge (for example sediment plus chlorine taste\/odor combined) or for systems that require a different cartridge dimension or micron rating. Buyers should confirm compatibility with their 20in whole-house housings before ordering.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEffectively reduces iron and manganese to very low levels when used as directed.\u003c\/li\u003e\n\u003cli\u003eReusable resin can be regenerated with a salt soak, lowering lifetime costs.\u003c\/li\u003e\n\u003cli\u003eManufactured and tested under ISO9001 processes with robust pressure testing.\u003c\/li\u003e\n\u003cli\u003eDesigned to fit standard 20in x 4.5in whole-house filter housings used in three-stage systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNot a multi-contaminant cartridge-primarily targets iron and manganese, so additional stages are required for sediment or chlorine removal.\u003c\/li\u003e\n\u003cli\u003eRegeneration requires time and access to salt water, which may be inconvenient for some users.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter type\u003c\/td\u003e\n\u003ctd\u003eReusable resin granule iron \u0026amp; manganese reducer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMicron rating\u003c\/td\u003e\n\u003ctd\u003e5 micron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e20in x 4.5in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUseful life\u003c\/td\u003e\n\u003ctd\u003eApproximately 6 months or 4,000 gallons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReduction capability\u003c\/td\u003e\n\u003ctd\u003eIron up to 3.0 ppm to ~0.01 ppm; manganese up to 1.0 ppm to ~0.01 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuality standards\u003c\/td\u003e\n\u003ctd\u003eProduced under ISO9001 with pressure and water hammer testing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe PUREPLUS RFN20BB cartridge is a solid choice for whole-house iron and manganese reduction when used as part of a three-stage filtration system; its reusable resin and clear service life make it good value for homeowners with well water concerns. Those who need broad-spectrum contaminant removal or who cannot perform periodic regeneration should consider additional stages or a different cartridge.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan the resin be regenerated?\u003c\/strong\u003e\u003cbr\u003eYes. The inner resin granule filter can be soaked in salt water for about 12 hours to restore iron and manganese reduction performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long does one cartridge last?\u003c\/strong\u003e\u003cbr\u003eThe cartridge is designed for about 6 months of use or up to 4,000 gallons, whichever comes first.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this fit my whole-house system?\u003c\/strong\u003e\u003cbr\u003eIt fits standard 20in x 4.5in whole-house filter housings and is intended for use in a 3-stage protection arrangement; verify housing compatibility before purchase.\u003c\/p\u003e","brand":"PUREPLUS","offers":[{"title":"Default Title","offer_id":48235278500059,"sku":"B09JW38NFD","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51nUDlCwKGL._AC_SL1500.jpg?v=1770820734","url":"https:\/\/gearmusthave.com\/products\/pureplus-5-micron-20in-x-4-5in-whole-house-iron-manganese-filter","provider":"GearMustHave","version":"1.0","type":"link"}