Fend-all Sterile Saline Refill Cartridge Set is a preserved, buffered, pH balanced saline solution that renders a constant fluid flow rate and Stream height for the entire 15 min flushing period required by ANSI Z358.1. It is ideal for airborne particulates, biohazard, chemical, contamination, gas, vapors and smoke and splash applications. Cartridge refill for Fend-all Pure Flow 1000 eyewash station is a purified, contaminant-free and physiologically correct saline solution. Factory-sealed cartridge lasts up to 24 months at least four times longer than other primary self-contained eyewash devices.