GE GXRTQR SmartWater Inline Filter Replacement Cartridge
If you've got a GXRTQ Filter System, and you need some replacement filters... look no further. The GXRTQR (note the ""R"" at the end) is the replacement filter for your system. Note: The GXRTQR is a replacement cartridge only - it can only be used if you already have a GXRTQ filter system installed.