Gravity-fed eyewash mounts to a wall or can be placed on a countertop or other solid surface. Eyewash is lightweight - only 7 gallons or 60 lbs. full and can be easily transported from one location to another. Transparent polycarbonate tank allows you to see at a glance when it is time to clean or refill the unit. Eyewash activates water flow when hinged eyewash tray is pulled down. Safety sign included. Spray heads provide a continuous flow of water for 15 minutes at 0.4 gpm. SEI Certified. Waste collection tank is 56 gallons with 1/2'' petcock at bottom for easy draining of waste over a floor drain.