Watts QTCMX20S

This Hydro-Safe QT replacement filter cartridge, QTCMX20S, is designed for the QT Cube Max, QTCBMX-1L-.5M, single-stage filter system. It measures 20 inches long and is rated for 1.5 gallons per minute service flow rate. This cartridge contains a 0.5 micron ultrafiltration membrane to reduce sand, silt, sediment, and rust. A special long life polyphosphate material is incorporated into the cartridge to reduce scale formation and protect against corrosion. This cartridge has a six-month life expectancy for scale prevention.