AK AIR GAP 1/1/4 IN.

This 1 1/4 to 2 inch plastic air gap drain is designed to be installed under the MasterSeries (R) reduced pressure assembly to catch moderate relief valve discharge due to pressure fluctuations and/or minor check valve fouling. This drain reduces the amount of water splashing in the area around reduced pressure assemblies while funneling relief valve discharge into the drain.