Zep Commercial Wall Mount Dispenser, Advantage+,17.5"x4.4"x10.4", Blue - Dispense up to four chemical products (four high flow, four low flow) with this Advantage Plus Wall-mount Dispenser. It is easy to install with no tubes or metering tips involved. Use it to dispense Zep Professional Advantage chemicals. Water supply must be available to use dispenser. Diluted product will dispense at rate of 2.5 GPM. With no metering tips, the dispenser also offers reduced maintenance. Dispenser with backflow preventer is available for locations where required by plumbing regulations.