PROFLO PROFLO 1-1/2" x 2" ABS Sch 40 Adapter Air Admittance Valve (Sold in quantities of 6) For Venting 2" DWV And Smaller

Product Features:20 DFU1-1/2" x 2" Sch 40 adapterFor venting 2" DWV and smallerIncludes screening on air inlets to protect the sealMade in USAASTM Specifications : ASTM D-2665|ASTM D-2661Constructed of ABS - a polypropylene blendNSF CertifiedNSF Specifications : NSF 14Quantity: 6