Pure Flow 1000 delivers unequaled eyewash safety, reliability, and value. The patented system delivers purified, contaminant-free, and physiologically correct Eyesaline solution from factory-sealed cartridges. Pure Flow 1000 does not require costly plumbing. It features a fluid pressure balancing system that provides a constant fluid flow rate and stream height for the entire 15-minute flushing period required by ANSI Z358.1-2004. Pure Flow 1000 factory-sealed cartridges last up to 24 months,* at least four times longer than other primary self-contained eyewash devices.