Air Admittance Valve Product Group - Drains Air Valves and Vents Pipe Dia - Drains 1-1/2 in to 2 In. Material of Construction - Drains ABS Color - Drains White Connection - Drains MNPT For Use With Venting Single Fixture Individual Branch Circuit Vent Or Stack Type Application Up To 160 DFU - Gauge Height (In.) - Length (In.) 2-5/8 Standards ASSE Performance Standard 10510 And 1051 NES-592 NSF Standard 14 IAPMO File No C-3803 ITS Intertek Testing Services