Timely replacement of filter cartridges is essential for the water quality and lifespan of reverse osmosis system. There are 7 pieces of 2.5 in. x 10 in. (industrial Standard) filter cartridges included in this genuine iSpring filter pack, make it the convenient 1 year supply for iSpring RCC7, RCC7P, RCC7U, and RCW5, and most other reverse osmosis water filtration systems in the market that use Standard 2.5 in. x 10 in. cartridges. The same as iSpring water filter systems, these filter cartridges have been tested by independent third-party to meet NSF/ANSI Standard for material safety, durability and filtration performance guaranteed to perform and last for the best. Choose iSpring genuine filter pack for the quality, value and your peace of mind. Note: The 1-year filter supply does not come with an RO membrane, as the membrane only need to be changed every 2-3 years. To get a filter pack that includes the membrane, take a look at the 2-year F15-75 or 3-year F22-75 supply pack.
2 x 1st stage: 5 micron multi-layer gradient polypropylene snow white filter blocks sediment, sand, dust, rust and anything that causes turbidity
2 x 2nd stage: 5 micron granular activated carbon absorbs unpleasant chlorine, tastes and odors, cloudiness and colors
2 x 3rd stage: 5 micron CTO carbon block absorbs any residual chlorine, tastes and odors, plus compounding pre-filters' efficiency and extending RO membrane's life
1 x 5th stage: total polishing inline carbon absorbs any possible residual tastes and odors
Lasts 6 to 12 months depending on feed water quality
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