his inline water filter (part number 4378411RB) has NSF certification 42; it reduces chlorine taste and odor and class III particulates rust, dirt, sand and sediment 5 to 15 microns in size.
Inline water filter 4378411RB is for refrigerators without a built-in water filter. The filter quickly connects directly to your refrigerator's water supply line.
Replace every 6 months, or more often if water flow slows noticeably.