Under Sink Drinking Water System, Includes Filter Head With Built In Bracket, RC-EZ-3 Cartridge, Mounting Screws, Supply Adapter, Lead Free Faucet With Built In Electronic Cartridge Life Indicator & 1/4" Plastic Tubing, 6 Months/500 Gallons Filter Life, Features Twist On, Twist Off Mechanism, Quick Connect Fittings, Double Water Shut Off, Reduces Bad Taste & Odor, Chlorine Taste & Odor, Sediment, Lead, Cysts Such As Cryptosporidium & Giardia, Turbidity, Atrazine, Lindane & Particulate Class I, NSF Certified, Level 3 Advanced Filtration.