The PPA adaptor will cement inside a standard P-trap and is available in 2, 3 and 4 in sizes. A 1/2 or 5/8 in brass compression fitting is provided with each adaptor for the attachment to a drain trap water make-up line. It provides a 360 deg adjustment prior to cementing in place. It meets ASTM D-2661 or ASTM D-2665 Standards. ABS and PVC materials SCH #40 DWV.