This 3/4 to 2 in plastic air gap drain is installed under a reduced pressure assembly, series 825Y, to catch minor 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.

Febco® Air Gap, 3/4 to 2 in, Plastic, Domestic

• Specification Sheet https://www.hirsch.com//ASSETS/DOCUMENTS/ITEMS/EN/https://assets.unilogcorp.com/2/ITEM/DOC/Watts_Water_905082_Specification_Sheet.pdf