This high performance In-Line Refrigerator Water Filter System is an excellent way to have fresh, clean, filtered water and ice in any refrigerator with an automatic ice maker or water dispenser. The In-Line Refrigerator Water Filter can be mounted in many convenient locations like under the sink and behind the refrigerator. With the built-in bypass valve, there is no need to turn off the water supply when changing the Refrigerator Water Filter. Simply turn the Refrigerator Water Filter 1/4 turm to remove or replace. The In-Line Refrigerator Water Filter System includes a mounting bracket, shut-off valve, quick connect fittings, and a Refrigerator Water Filter. Kit uses Refrigerator Water Filter numbers 4396508 filter or the 4396510 filter for cyst reduction. Replacing this Refrigerator Water Filter every 6 months ensures clean, safe drinking water.