Crystala 4204490 Filter Statement: After our laboratory test, the 4204490 refrigerator water filter removes 97.9% chlorine and improves the water’s smell and taste.Maintain all necessary micronutrients: After testing in our laboratory, the CF24 Refrigerator Water Filter removed 97.9% of the chlorine and improved the smell and taste of the water.4204490 Replacement Water Filter Compatible with 4204490, 4290510, PRO 48, PRO 48 with glass door, BI-36F freezer, BI-36U up and down refrigerator/freezer, BI-48S side-by-side refrigerator/freezer, BI-48SD side-by-side Refrigerator/freezer, BI-36UG glass door refrigerator/freezer, BI-30U up and down refrigerator/freezer, BI-30UG glass door refrigerator/freezer, BI-42S side-by-side refrigerator/freezer, BI-42SD side-by-side refrigerator/freezer.Twist-lock design, leak-proof fit: The water filter replacement 4204490 features a twisted design for a quick and easy filter change. Leakproof fit, free of tools. (Note: Please contact us if you encounter any problems during installation)Filter life: For optimum filtration, replace the 4204490 water filter cartridge every six months or 300 gallons (depending on your actual water usage) and periodically replace the 4204490 water filter for higher quality water and ice. Product Description Installation Pull out on the bottom edge of the grille assembly and tit the grille frame upward. Installation Slowly rotate the cartridge one-quarter turn counterclockwise to disengage. Gently twist until the cartridge is free from the base. DO NOT pull. There will be water in the filter cartridge, so it is normal for a small amount of water to spill out. Line up the cartridge so that the locking tabs can be inserted into the filter head. Installation Rotate the filter cartridge into the base approximately one-quarter and turn clockwise until it stops. DO NOT overtighten. Installation Press and hold water filter button one the control panel for five seconds. Track Page Views WithAuctiva's Counter