PUR 3-Stage Vertical Stainless Steel Faucet Mount FM-4100B Includes 1 faucet mount and 1 filter; Our ULTIMATE in FILTRATION and a CRISP, REFRESHING TASTE; Easy One-Click Installation; Built-in Electronic Filter Life Indicator keeps track of your filter life; Conveniently provides up to 100 gallons (two to three months) of healthy clean water; Enjoy filtered or unfiltered water at the flip of a switch; Removes 99.9% Microbial Cysts (Cryptosporidium and Giardia); Reduces 98% Lead. Also reduces Mercury, Chlorine (taste and odor) and more; Leaves beneficial fluoride in the water