WW0881577, Watts, Air Gap For 1 1/4 To 2 IN 919 Series

This air gap is designed for 1 1/4 to 2 inch reduced pressure zone assembly, series 909, and provides an unobstructed, physical separation between the discharge end of a potable water supply line and an open receiving vessel. The installation of an air gap and drain line are recommended on reduced pressure zone assemblies. An air gap can be installed vertically or horizontally (vent elbow required for vertical installation).