【Attention 】This is the filter replacements for Pure Take Faucet Mount Water Filtration System ,before purchase this ,you must purchase Pure Take Faucet Mount Water Filtration System 【Premium Care:】NSF42 certificated ACF carbon fiber filter element prevent 99.9% growth of containmaints effectively from PURECELL of TOYOBO Japan.Remove the residual chlorine, taste and odor more than 100%, lead and other heavy metals,suitable for you pet's water and your family daily drinking 【4pcs filter replacements 】Each Filter Cartridge offer You 380Gallons of cleaner water, or 3 months of typical use It depends on local water quality and customer usage. 【Change Filter 】Please change the filter cartridge under the following situation : 1 The output water has peculiar smell or turbidity 2 :The flow rate is too low 3:No hot water (gas water heater doesn’t work owing to too low flow rate) Pure Take 4pcs Filter Replacements for Faucet Mount Water Filtration System