The improved next generation of PUR faucet water filter is at your service with the PUR Advanced Faucet Water Filter - Chrome FM-3700B. With 1-click installation, superior contaminant removal, and a Two-year warranty, there's never been an easier or more reliable way to get PUR water. Each PUR faucet water filter gives you up to 100 gallons (2 – 3 months) of clean, healthy, great-tasting water.