The Dilution at Hand Extreme has a sleek design and enhanced color scheme that provides a modern appearance in any housekeeping environment. This dial-a-blend dispenser is designed to dispense 4 chemicals at 1 gallon per minute (4L / min.) with 1 hand activation for easy spray bottle filling. The built in 1 gpm flow disk improves dilution accuracy compared to other dispensing systems. Available as the dispenser alone (803GAP) and with 4 locking enclosures in either 1 gallon (5L) or 2 liter (1/2 gallon) sizes (803GAP-QIG, 803GAP-Q2L). Uses Dema’s ASSE 1055B approved action gap backflow preventer or optional air gap backflow protection (substitute AG for GAP in part#).