Quick and easy to refill; reservoir marked "Foam Soap" to insure proper use. Each stroke dispenses 0.4mL of liquid in the form of foam soap. Made out of tough and durable ABS and SAN plastic for extended lifetime. See-thru tank indicates the level of soap remaining; dispenser can be removed from mounted backplate for easy cleaning. ADA compliant. Field tested foam pump mechanism lasts several thousand cycles. Tested and proven to work with many name brand bulk foam soaps - proven to provide rich, thick foam. Design uses a "bag/box-less" refill reservoir to reduce packaging waste of captive systems. Handles most foam soaps and bulk foam sanitizers from 0-14 centipose (cps). Gray see-thru color. Measures 4" length by 4-1/2" width by 6-1/4" height.