If you're looking to upgrade your reverse osmosis system with premium filtration and healthier water output, the iSpring F9K is an excellent choice. This NSF-certified 1-year filter kit is designed specifically for 6-stage RO systems and includes advanced alkaline remineralization filters that add back essential minerals like calcium and magnesium for better taste and health benefits. Without the RO membrane, it's perfect for replacing or upgrading existing stages in your system. The filters effectively reduce chlorine, bad taste, odors, and contaminants while balancing pH levels for smoother, great-tasting water. Easy to install and replace, the F9K ensures consistent performance and long-term protection for your household. Trusted by thousands, iSpring delivers reliable quality that keeps your water pure and naturally enhanced—ideal for drinking, cooking, and overall wellness.
【1-Year Water Filtration Replacement Pack】This pack contains individually wrapped high-capacity filter replacement cartridges designed for 6-stage RO systems, providing a full year of filtration. The pack includes 9 filters: 2x sediment filters, 2x granular activated carbon filters, 2x carbon block filters, 1x post-carbon filter, and 2x alkaline filters.
【Standard Size RO Replacement Cartridges】iSpring water filter cartridge set fits standard housings that require 10” x 2.5” reverse osmosis water filter cartridges.
【Efficient Filtration】Experience clean, safe, and good-tasting water every time you turn on the faucetand, providing a wonderful drinking experience for your whole family. Enjoy crystal clear ice cubes, fresher tea and coffee, better tasting foods, healthier baby formula – even better than most bottled water.
【pH-Balanced Alkaline Water Filter】The alkaline mineral filter produces alkaline water with restored healthy minerals such as natural calcium, magnesium, and potassium ions, which ph-balances the RO water. Length: 10", O. D. = 2.5". This alkaline water filter is a great add-on for under sink water filters or reverse osmosis systems.
【Please Note】This water filter replacement cartridge pack does NOT include an RO membrane. Updated FA15 alkaline mineral filters and FT15 post-carbon filters are built with a secure push-fit quick connection, which allows faster filter replacement. If you have trouble installing the filters, please refer to the user manual or contact us.
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