Product Description Note: AQUACREST RF-3375 filter with stronger water flow meets the requirements of both high efficiency and rapid filtration. If turbidity appears in the filtered water at the beginning, please flush the filter for about 3 minutes to release bubbles before using. NSF certifications: Tested and certified by NSF International against NSF/ANSI standard 42 for the reduction of chlorine, taste and odor, and to NSF/ANSI 372 for lead-free material.High-efficiency filtration: Delicate design ensures a perfect fit for the original. AQUACREST faucet water filter uses premium coconut activated carbon block with a reduction rate of chlorine up to 97.2%. It is also tested by a third lab to reduce heavy metals, taste and odor, sediment, rust and so on. The efficient filtration is dedicated to provide you with an excellent water experience. Various ways to use: It doesn’t matter if it’s for drinking, cooking, brewing coffee or making tea, you deserve refreshing and great-tasting water. Our faucet filter meets your water needs in various ways. Longer service life: Enjoy fresh water by replacing your filter every 3 months and please refer to the instructions for details. Whichever comes first will vary based on water quality. If the Indicator doesn’t turn green after changing, please follow the instruction to reset it manually. Remove the filter, find a white box that sticks out with a button beneath where the filter normally goes. Press the button, and it will pop out. Insert the filter, put it back on.International certificationsThe filter is certified by NSF against NSF 42 and NSF 372, ensuring that the purified water is of a consistently high standard, thereby giving you the best water filter for faucet.Certificate C0145653, by NSF International, 2019.Advanced filtration mediaAQUACREST filter uses advanced filtration media to reduce sand, rust, sediment and bad taste in your tap water tested by a third lab.Stronger water flowThe faucet filter meets the requirements of both high efficiency and faster filtration without waiting to get premium filtered water.