Speakman GravityFlo portable eyewash units are the industry’s only gravity-fed portable eyewashes that offers an optional side fitting drench hose for spot body washing. The SE-4320 has a 20-Gallon capacity tank which provides a run time in excess of the ANSI Z328.1 required 15 minutes while offering an exceptional performing spray. A simple pull of an elastomeric strap activates the unit and provides hands free operation. The integral drain allows flushing fluids to be contained avoiding slip hazards. The SE-4320 includes the SE-4920 side fitting drench hose and a bottle of water preservative. The SE-4320 meets the ANSI Z385.1 standard.