NSF Certified Filter! Connect to Your Tap Enjoy great-tasting filtered water right from your sink! The Doulton HCS Countertop Water Filter System requires no plumbing and connects directly to your faucet for easy installation. Includes 1 Ultracarb Ceramic Filter - Reduces chlorine, cysts, sediment and heavy metals from your drinking water. NSF Certified for codes 42, 53 and 401.. Easy to Use and Maintain - Connect to the thread of your faucet tap - system sits right next to your sink. For best results, replace the Ultracarb filter element every 6 months (up to 600 gallons of clean drinking water).. Stainless Steel - Gleaming, durable stainless steel unit.. Made in the UK. Doulton has been making water filters since 1826. Manufactured in an EPA-registered establishment, it's BPA free and solidly built to be under water pressure all the time. . All Doulton water filters go through a rigorous testing process to guarantee consistently excellent results. Note: Not for salt water.Specifications: System Includes: 1 Ultracarb filter element, plus Tubing and Diverter Valve to fit to tap. Flow Rate: 0.5 gal per minute (dependent on water pressure). Filter capacity: 1 (works with Ultracarb filter elements only). Entire System: 12.6" x 3.94" x 3.94", 3.97 lb. Ultracarb Filter Element: 10".