The Speakman GravityFlo 21 Gallon Portable Eyewash is designed to provide the ultimate solution to locations in need of an eyewash that have no access to a potable water source. The GravityFlo portable eyewash station features a 21 gallon tank, providing continuous flow for the ANSI/ISEA Z358.1 required 15 minutes. With the capability to be cart or wall-mounted, this gravity operated eyewash can be placed practically anywhere within a worksite. Activated by pull down spray arms the SE-4000 instantly delivers relieving streams, allowing hands free operation. The SE-4000 also features a side port for connection of an optional drench hose.