The GE GXRLQK can be used with any brand of refrigerator and is installed inline behind the refrigerator. The GE water filter improves the taste and odor of water and ice going through your refrigerator. The compact design fits in tight spaces. The GE GXRLQK system has a 'Twist and Lock' mechanism that makes changing water filters easy. The GE SmartWater GXRLQK inline water filter system meets NSF/ANSI Standard 42 and NSF/ANSI Standard 53 for contaminant reduction. The GE GXRLQK water filter reduces lead, cysts, atrazine, lindane, chlorine taste & odor, turbidity and sediment. The GE GXRLQK removes as many impurities as built-in refrigerator filters. The GE GXRLQK water filter system comes with everything you need to install the system and filter your water, including the GE FQK1K water filter. The FQK1K and is easily replaced. Simply unscrew the old filter and screw in the new water filter.