OATEY 2185-1 Dearborn® 1-1/2" Baffle Tee - 20 Ga. For Slip Joint End Outlet Waste

A baffle tee is the center fitting in an end outlet continuous waste, where two sink bowls drain into one trap. The internal baffle directs flow from the near bowl toward the outlet so water from one bowl doesn't back up into the other. The Oatey Dearborn 2185-1 is the 1-1/2 inch, 20 gauge version built for slip joint end outlet waste assemblies.

It ships with what you need to make the joints: a 3 inch tailpiece, two zinc slip nuts and two rubber slip joint washers. You still supply the trap and the waste arm tubing to reach the second bowl.

Yes, it's a 1-1/2 inch slip joint fitting, so it mates to standard 1-1/2 inch tubular drain tubing using the supplied slip nuts and rubber washers. No threading or soldering. If your existing waste line is 1-1/4 inch lavatory tubing, this is the wrong size.

Brass tubular, 20 gauge wall, with a chrome finish. That matters when the trap assembly is exposed under a sink or in a commercial space where plastic tubular isn't accepted. It also means you can't solvent weld it, all joints are slip joint.

The included tailpiece is 3 inches, which is short by design, it is meant to drop the tee down off the basket strainer, not to span a deep cabinet gap. If your basket sits higher than that, add a longer 1-1/2 inch slip joint tailpiece or an extension tube rather than trying to stretch this one.

End outlet means both bowls drain toward one end of the assembly, where the trap hangs under one bowl, that's what the 2185-1 baffle tee is built for. Center outlet puts the trap between the two bowls. Pick based on where your drain stub-out comes out of the wall. If the stub-out is offset under one bowl, end outlet is the layout you want.

Gauge is the wall thickness of the brass tube. 20 gauge is the heavier tubular wall used where the drain is exposed and gets handled, versus thinner residential tubular. For property managers and MRO buyers replacing drains under public or high-traffic sinks, the heavier wall holds up better to repeated slip nut tightening. The Dearborn 2185-1 is the 20 gauge, 1-1/2 inch baffle tee.

Order it as Oatey Dearborn 2185-1. It weighs 0.7 lb with the tailpiece, nuts and washers included, so it ships as a small parcel item, useful if you're stocking several for a multi-family or hospitality drain rebuild.