Replacement Set for CUA4 4Stage System 4PK, Ispring, Mfr#: F4-CUA4

PP Sediment Filter 5 microns removes larger particles like rust sand and dirt Ultra Filtration Filter contains hollow fiber membrane technology with a pore size of just 0 01 micron KDF and GAC Filter provides much better control of particularly problematic contaminants including chloramine hydrogen sulfide and metals Fine Activated Carbon Filter provides final polishing before the purified water is delivered to the faucet removing any possible residual chlorine tastes or odors