Profile Faucet water purifier HF211A is an improved product based on HF211, also a China patent product, which is convenient, compact, cleanable and environment friendly. It can be installed easily .Pureeasys multistage faucet filter removes 99.99% harmful substance from the tap water, bring you visible clearance. Its long-lasting filter and easy access make this the perfect option for families, kitchens and cooking.Features1. Faucet water purifier is Clever space-saving design 2. Makes cooking with filtered great-tasting water easy 3. Install easily in minutes on standard faucets ( will not work with pull-out faucets) 4. Enjoy filtered or unfiltered water at the flip of a switch. 5.Use the technology of the best ceramic water filter element in the word, which made of natural diatomite. Its agglomerated in high temperature, has many tiny hole,can environment-friendly remove most contaminants in water.6.Nano-KDF remove residual chlorine & heavy metals & inhibit the growth of bacteria. 7.Activated carbon for a better testing8.Made from natural environment-friendly material , safe to use. 9.Can be used repeatedly by brushing without secondary pollution. 10. Fitler element is easy to replace. 11. Prepared 2 cartridges can adapt to different water quality. Its the Human Design and much more convenient.Removes (1) Rusts (2)Contaminants (3) Worms (4)Residual chlorine (5)Algae (6)Disinfection by-products (7)Parasites(8)Heavy metal ions (9)Dirt (10)Organic pollutants (11)Dusts (12)Unpleasant tastes (13)Giardia(14)Cryptosporidium Technical DataOutput: ≥1L/min at 0.2Mpa hydraulic pressure Cartridge Capacity: ≥2,000 liters (depending on water condition) Working Pressure: 0.1 0.4MPa(1-4 bar / 14.5psi-58psi) Operating Temperature range: 5 45 Weight: Approx. 240g Dimensions: 12.6*5.4*12.5cm Material: Built-in Membranes Ceramic Cartridge, Nano-metal clusters (Nano-KDF) media, Activated carbon, PlasticThe differences between the 2 Faucet water purifier Cartridge :Cartridge 1: Built-in Membranes Ceramic Cartridge, NMC-, activated carbon, its fineness is 0.2micron , can removes most suspended contaminants and bacteria, its suit for the family who has the high water pressure and the water has less but bad tasting.Cartridge 2: Ceramic Cartridge, NMC-, its fineness is 0.5micron, its fineness is not as good as Cartridge 1, the water flow rate is better than Cartridge 1, its fit for normal or low water pressure and the tap water has much suspended contaminants and normal tasting