OATEY 774A Dearborn® Tray Plug Sink Basket Strainer, Brass Body w/ Rubber Stopper for 2-1/2" Opening

The Oatey Dearborn 774A is built for a 2-1/2 inch sink opening, which is the common size on older cast iron and commercial pantry or tray sinks rather than the 3-1/2 inch opening found on modern residential kitchen sinks. If your sink drain measures 3-1/2 inches across, this one won't seat.

It's a threaded installation, so the strainer body threads into the sink opening rather than clamping with a separate retaining ring. Anything already in the opening comes out first, and the tailpiece connection below picks up the trap.

Brass body with a stainless steel basket, finished in chrome. Brass and stainless are the two materials that survive constant hot water and detergent in a commercial or institutional sink, which is why this style is specified for pantry and tray sinks in schools and food service rather than a plated steel strainer.

Tray plug is the style here: a stainless basket with a handle plus a rubber stopper, so the basket catches debris while the stopper seals the opening to hold water in the bowl. A plain post or crumb-cup strainer only screens debris and won't hold a sink full of water. If you need to fill and drain a utility or tray sink, the tray plug type is the one to order.

The rubber stopper is part of the 774A, along with the stainless steel basket and handle. One part number, model 774A, covers the brass body, basket, and stopper.

About 0.533 lb, which tells you it's a solid brass body rather than a thin plated shell. Light enough to carry a dozen on a service truck without thinking about it.