The GE FQK1R Single Stage Under Sink Replacement Filter is designed specifically to fit GE GXK140TNN and GXULQK under sink water filtration systems, delivering premium filtration and easy maintenance. This genuine GE filter is certified to reduce 95+ impurities, including lead, chlorine, PFOA/PFOS, arsenic, sediment, and cysts (impurities not necessarily found in all users’ water), helping provide better-quality water straight from your main faucet. With a recommended six-month filter life, the FQK1R keeps your system operating at its best and is conveniently sold as a single replacement cartridge. The twist-and-lock design allows for quick, tool-free filter changes without shutting off your water supply, making upkeep simple and hassle-free. Certified to NSF/ANSI drinking water standards, this replacement filter offers reliable, independently verified performance you can trust.