Under Sink Drinking Water Filter System, 3,000 Gallon Capacity, Features Twist On, Twist Off Mechanism, Quick Connect Fittings, Double Water Shut Off, Reduces Bad Taste & Odor, Chlorine Taste & Odor & Particulate Class III, Includes Filter Head With Built In Bracket, RCEZ1 Level 1 Replacement Filter Cartridge, Mounting Screws, Supply Adapter, Lead Free Faucet, 1/4" Plastic Tubing, Filter Change Reminder Sticker, NSF Certified, 2 Year Limited Warranty.