This 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).
- Nuisance discharge
- For use with 957
- Lightweight
- Plastic construction
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