Instapure Complete Faucet Filter Cartridge for reduction of Lead, chlorine, taste, cyst. R5 filter cartridge lasts for 200 US gal (757L). Instapure Faucet Mount filters give clean, great tasting filtered water right from the kitchen tap. Ideal for rental apartments, student dorms and homes. Reduces lead, cyst, chlorine, taste, odour and sediment.  Replace cartridge every 2 months or after using 200 US gallons.  Permanent installation not required.  Easily mounts to existing faucet in minutes without the use of special tools. Attractive white finish matches most kitchen decor.  Highly economical with cost per litre of filtered water half that of competitors.  High performance, is compact and long lasting and is ideal for drinking water and cooking needs. F5 has been tested and certified by NSF to NSF/ANSI 53 for reduction of lead and cysts and to NSF/ANSI 42 for reduction of chlorine taste.