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$179.99
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iSpring F9KUS Standard 6-Stage Reverse Osmosis RO Systems 1-Year Replacement Cartridge Pack Set, with Alkaline Mineralization, pH+, 10" X 2.5", Made in USA (F9KUS)
  • Individually wrapped, 1-year high capacity, top quality filter replacement cartridge pack for iSpring PH100 and most industry standard 10” 6-stage reverse osmosis RO systems. Made in the US.
  • Alkaline Remineralization Filter: Restores healthy minerals and produces a balanced alkalinity; creating better tasting water. This filter uses all natural mineral stones as the filtration media and never sacrifices quality for quantity.
  • Sediment Water Filter: Works as the first barrier in the reverse osmosis system by removing solid particles like silt, rust and dirt from the water and reducing a significant percentage of contaminants in the water. This prevents the other filters from getting clogged with fine particles and reduces the risk of damage to the other parts of the filtration system.
  • Granular Activated Carbon Filter: Includes high quality carbon media that filters out impurities in the water. This protects and prolongs the lifespan of the reverse osmosis membrane.
  • Carbon Block Filter: Activated carbon filters trap and absorb organic chemicals and chlorine from the water. This results in the removal of odors and an improvement on the taste of the water.
  • Post Activated Carbon Filter: Captures any particles that may have accumulated inside the tank before pure water is delivered to the faucet. It will last up to 12 months depending on the incoming water source and personal usage.
  • 9 pack of 10” x 2.5” replacement water filters included: 2x Alkaline Remineralization filter, 2x Sediment Filter, 2x Granular Activated Carbon Filter, 2x Carbon Block Filter and 1x Post-Carbon Filter. All filters are made in the USA.
  • Note: This filter pack does NOT include an RO membrane.
  • We offer tech and customer service support by phone or email from our Georgia, USA location. Contact our knowledgeable team for help with product selection that fits your specific water filtration needs and after-sale support to simplify your user experience. We are happy to be here to support our customers and provide them with high quality drinking water both now and in the years to come.
  • $179.99
    iSpring FA15US 10-inch Universal Inline Alkaline Replacement Water Filter Cartridge with Calcite for Reverse Osmosis RO System, pH+, Made in USA. (FA15US)
  • Individually wrapped, universal sized, alkaline filter replacement cartridge for iSpring PH100 and most industry standard 10” 6-stage reverse osmosis RO systems.
  • Made in the USA. This alkaline remineralization filter restores minerals and produces balanced alkalinity.
  • This filter is option add-on filter to compliment any existing or new reverse osmosis RO water filtration systems.
  • iSpring FA15US Alkaline Filter is built with a secure push-fit quick connection on both sides. Comes with 1/4” and 3/8” both size quick connection fittings. If you have trouble installing the filters please either refer to the user manual or contact us directly.
  • Average Filter Life: 6 -12 months, depending on your source water and usage.
  • We offer tech and customer service support by phone or email from our Georgia, USA location. Contact our knowledgeable team for help with product selection that fits your specific water filtration needs and after-sale support to simplify your user experience. We are happy to be here to support our customers now and in the years to come.
  • $32.99
    iSpring FC15 Standard 10 inch CTO Carbon Block Water Filter Cartridge Replacement, 5 Microns (FC15)
  • Reduces fine sediment and chlorine taste and odor in residential and commercial drinking water
  • Rated at 5 microns
  • Bonded Pac media with polyolefin pre-filter and polyethylene netting
  • Initial pressure drop of 3.4 psi at a flow rate of 1 gpm
  • Water temperature range of 40 to 180 degrees F (4.4 to 82.2 degrees C)
  • $17.20
    iSpring FC15B 5-Micron Coconut Shell Activated CTO Carbon Block Water Filter Replacement Cartridge for Under Sink Water Filter and Whole House Water Filtration Systems, 4.5" x 10" (FC15B)

    Using quality coconut shell carbon and highly compact fabrication tech, this activated carbon block CTO(Chlorine, Taste, and Odor) filter cartridge is designed and produced to achieve filtration efficiency and long filter life for 10" Whole House and Undersink Water Filtration Systems. Free of surfactants, binders, and adhesives. No leaching carbon ash.

    Knocks out cloudiness as well as bad tastes and odors, removes up to 99% of chlorine, and is effective on herbicides and industrial solvents and other contaminants like trihalomethanes. Steady flow and high absorption.

    Filters up to 50,000 gallons depending on the use and feed water quality. Replace the filter every 6 months or every 50,000 gallons of water for ideal performance, depending on the quality of source water and daily water consumption.

    Fits standard 10"x4.5" whole house and undersink water filtration systems. Official 2nd stage Carbon Block replacement filter cartridge for iSpring Under Sink Water Filtration System US21B as well as Whole House Water Filtration System WGB21B; 1st stage replacement filter cartridge for WGB21BM and WGB21B-PB. Individually sealed for freshness.

    Your worry-free shopping experience is backed by a 30-day money-back guarantee, extended warranty upon registration, and lifetime tech support from iSpring in Atlanta, GA at (678) 261-7611.


    $39.59
    iSpring FC15US Universal Coconut Shell Activated Carbon Block CTO Filter Replacement Cartridge for Reverse Osmosis RO and Under Sink Water Filtration Systems, 10" x 2.5", Made in USA (FC15US)
  • Individually wrapped, universal sized 10” x 2.5”, activated carbon block (CTO, Chlorine, Taste, and Odor) replacement filter cartridge for iSpring PH100, RO100 and most industry standard 10” reverse osmosis RO and under sink systems.
  • Made in the USA. This activated carbon block filter traps and absorbs chemicals and chlorine from the water.
  • This activated carbon block CTO filter cartridge uses coconut shell carbon and compact fabrication tech.
  • Average Filter Life: 6 -12 months, depending on your source water and usage.
  • We offer tech and customer service support by phone or email from our Georgia, USA location. Contact our knowledgeable team for help with product selection that fits your specific water filtration needs and after-sale support to simplify your user experience. We are happy to be here to support our customers now and in the years to come.
  • $21.99
    iSpring FC15X25 Box of 25 CTO Carbon Block Water Filter Replacement Cartridge, Compare to KX Matrikx, Pentek, OmniWater Filter Replacement Cartridge, Hydronix (FC15X25)
  • Individually wrapped, packed in 25 pcs per carton
  • 5 micron Rating
  • Made from coconut shell carbon
  • Fits 10" standard filter housings
  • Removes Chlorine and Organic chemicals
  • $144.29
    iSpring FCB500 Carbon Block Filter Replacement for RO500 Tankless Reverse Osmosis Water Filtration System (FCB500)
  • Dedicated last stage carbon block filter for iSpring RO500 tankless reverse osmosis system.
  • Made with quality coconut shell activated carbon block.
  • Further polishes filtered water and enhances the taste of water.
  • Experience clean and fresh water every time you turn on the real-time TDS monitoring faucet of your RO500.
  • Lasts for up to a full year, depending on the quality of source water and daily water consumption. 
  • Quick and easy filter change. No tools required.
  • Backed by a 30-day money-back guarantee with lifetime CS and tech support from Atlanta, GA USA.
  • $25.99
    iSpring FCF500 Replacement Filter for RO500 Tankless Reverse Osmosis Water Filtration System (FCF500)
  • Dedicated 1st stage replacement filter for iSpring RO500 tankless reverse osmosis system. 
  • Featuring a multi-layer design, 3-in-1 compound filter FCF500 is designed to remove sand, rust, dirt, particles as well as chlorine and unpleasant odor. 
  • Experience clean and fresh water every time you turn on the real-time TDS monitoring faucet of your RO500.
  • Lasts for up to a full year, depending on the quality of source water and daily water consumption. 
  • Quick and easy filter change. No tools required.
  • Backed by a 30-day money-back guarantee with lifetime CS and tech support from Atlanta, GA USA.
  • $27.99
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