Certified 5-Stage Filtration: Enjoy fresh purified water with Vortopt faucet mount water filter. With purification to 0.5um, the filter is NSF certified to reduce 99% impurities such as rust, sediments, chlorine, lead, odor and improve taste, making your water clean and healthy. (Not for reducing TDS) Upgraded Stainless Steel: 304 Food grade stainless steel faucet water filter, more sturdy and durable than plastic material. You don't need to worry about any possible leakage, crack, corrosion, or odd smell while using. Fast Water Flow: With a 0.5 GPM average water flow, you can fill up four 16.9oz bottles of water in one minute (the maximum water flow is 1.79 GPM). One faucet filter can replace 3,028 plastic bottles and its service life is 3-6 months. There are 2 water modes between raw water and purified water for choice to prolong the filter life. East To Install: With the product video and instruction you can easily install the faucet water filter by yourself, with no tools required. The filter fits with most faucets but not for pull-out or hand-held faucets. *Package includes: 1 filter, 3 adapters (M24 internal thread & seal fitting 15/16″, M22 external thread & seal fitting 0.85″, M24 external thread fitting 55/64″), 1 universal joint, and 1 activated carbon block filter. Various Applications: Vortopt faucet water purifier is an ideal choice for daily drinking, cooking, cleaning, and skincare. You can install the tap filter in your kitchen, bathroom or tub to meet different water needs. It's small, lightweight, and very convenient to use.