F3WGB32BM 4.5 X 20 3-Stage Whole House Water Filter Set Replacement Pack with

Both water filters have a capacity of 100,000 gal. [Whole House Water Filter that Protects Your Family and Household Appliance from Iron, Manganese, and More] Our iron water filter (FM25B) is specially designed for iron & manganese removal, reducing iron (MAX 3.0 ppm) and manganese (MAX 1.0 ppm).