Oatey 39019 Sure-Vent Air Admittance Valve with 1-1/2-Inch by 2-Inch ABS Adapter Bulk Pack, 1-1/2-Inch
</br></br>
<div style="text-align:left">
<b>[Product Information]</b><br>
<ul>
<li>Complies to ASSE Standard 1050 and 1051.</li>
<li>For use as a secondary vent.</li>
<li>One size approved to handle up to 3"" vent pipe.</li>
<li>Opens/closes as needed by building's plumbing system.</li>
<li>Complies to ANSI/ASSE 1051 A&B</li>
<li>Adapter allows solvent welding to 1 1/2-Inch or 2-Inch Sch. 40 PVC pipe or threads into 2-Inch FIP fitting</li>
<li>For use as a secondary vent</li>
<li>Each valve individually tested</li>
</ul>
</div>
</br></br></br></br></br></br></br></br></br></br>

</br></br></br></br></br></br></br></br></br></br>
<img src='http://ecx.images-amazon.com/images/I/41u6VXwgiwL.jpg'></br>