Watts 909 AGC Air Gap (0881376)

Watts 909 AGC Air Gap (0881376) Watts 909 AGC Air Gaps for Reduced Pressure Zone Backflow Preventers. Air gap provides the unobstructed, physical separation between the discharge end of a potable water supply line and an open receiving vessel. Series and Sizes: • 009/909 3/4" - 1" • 909 M2 1" - 1-1/2" • 995 1-1/4" - 2"