Sure vent, air admittance valve, advanced sealing technology with 1-1/2" - 2" pvc adapter, solvent welds to 1-1/2" & 2" with supplied adapter & threads into 2" female iron pipe adapter, tested to comply for dwv to nsf standard 14 asse 1050 & asse/ansi 1051 a&b with on going quality control for plastic components & standard compliance, sure vent exceeds the asse 1050/51 standard's positive pressure rating.
