The Unox UX204-53040A is a high-performance water filtration system cartridge designed for optimal purification. This AMS QT Membrane Replacement Cartridge features a 97% rejection rate, ensuring effective removal of contaminants for cleaner, safer water. Compatible with models BWS-QT, OP350, and BWS350, it provides a reliable solution for maintaining water quality. Engineered for durability and efficiency, this cartridge is an essential component for your water filtration needs.