Watts 957-AG - Part of the Air Gaps Series Drain Fitting ZN453-2NH-5B

ZN453-2NH-5B

Provides debris protection for compatible roof drain systems

and a flashing clamp ensures proper integration with the waterproofing membrane

UPC - 098268447842

Fixed Membrane Flashing Flange & Clamp Collar: Creates a secure

Watts 957-AG - Part of the Air Gaps Series Drain Fitting ZN453-2NH-5BThis air gap is designed for 2 1 2 to 10 inch reduced pressure zone assembly, series 957 to provide an unobstructed, physical separation between the discharge end of a potable water supply line and an open receiving vessel. This air gap is designed to collect water that is being discharged by the relief valve and can be installed vertically or horizontally (vent elbow required for vertical installation). Features Use with 2 1 2 to 10 IN 957 Series