OAT 160 BRCH 24 STK SVENT 1.5-2 IN PVC 1-WAY TYPE; ASSE 1050/1051, NSF 14, ISO 9001, ICC ESR 1664, IAPMO, IPC, IRC APPLICABLE STANDARD; PLUMBING DRAINAGE SYSTEM APPLICATION; SCHEDULE 40 ADAPTER INCLUSIONS/FEATURES; PVC BODY MATERIAL; THREADED INLET CONNECTION; 1-1/2 TO 2 INCH INLET SIZE