OATEY A9803 Dearborn® 1-1/2 in. x 12 in. Flanged Strainer Tailpiece

Yes. The A9803 Dearborn tailpiece is flanged on one end specifically for connection to a sink strainer, and it is a 1-1/2 inch size, which is the standard kitchen sink drain size. The flange seats against the strainer body and is held by the strainer's slip nut, so no separate washer adapter is needed on that end.

The A9803 is the 12 inch length, which is what you want when the trap sits well below the strainer, such as a deep bowl or a low trap arm. The same Dearborn flanged strainer tailpiece is made in 4 inch, 6 inch, 8 inch and 12 inch lengths, so step down if the drop is short. The tube can also be cut to suit, since the plain end is what enters the trap slip joint.

The A9803 meets ASTM F409, the standard covering thermoplastic tubular drain fittings, and it is IAPMO Listed. That listing is what most inspectors working to the Uniform Plumbing Code look for on plastic tubular waste.

No, they are not interchangeable at the top end. A flanged tailpiece like the A9803 relies on the flange being clamped by the basket strainer's locknut; a threaded tailpiece screws into a lavatory pop-up body instead. If the drain body you are working with has male threads, you need a threaded (direct connect) tailpiece, not this Hi-Line flanged style.

It is plastic, not brass. The A9803 is molded from polypropylene, which resists the drain cleaners and hot water that eat chrome-plated tube, and it will not corrode at the slip joints. What it will not do is take the abuse of an exposed ADA or public lavatory installation where the tube is visible and gets knocked; for that a 17-gauge chrome brass tailpiece is the usual spec.

Plan on supplying the connecting hardware. The A9803 is the tailpiece tube itself, flanged at the strainer end, so the strainer's own slip nut captures the flange and the trap's slip nut and washer take the plain end. If you are also replacing the P-trap, buy the trap as an assembly with its nuts and washers included.

The A9803 ships black. Dearborn molds this flanged strainer tailpiece in white or black polypropylene, and this one is the black version. Under a cabinet color is cosmetic, but if you are matching existing white PP tubular on a job, note the difference before you order a run of them.