American Standard Grid Strainer Drain for Sinks - AMS-2411015

Yes, that's what it's built for. The 2411015 grid strainer is the overflow version, so it's meant for lavatory or sink bowls that have an overflow channel cast into them. If your bowl has no overflow, a non-overflow (sealed body) strainer is the correct part instead, since an overflow-style body will leak through the overflow ports on a bowl that has none.

The tailpiece is 1-1/4 inch (32 mm), which is the standard lavatory drain size in North America. It drops straight onto a 1-1/4 inch P-trap with the trap's slip nut and washer. If the trap under your sink is 1-1/2 inch (the usual kitchen size), you'll need a 1-1/4 to 1-1/2 inch reducing washer or adapter to make the joint.

It stays open. A grid strainer is a fixed, non-closing drain: the grid catches debris and water runs through continuously. There's no pop-up, no lift rod, no linkage to connect. If you need to hold water in the bowl, you want a pop-up drain assembly rather than a grid strainer.

In most lavatory installs, yes, and it simplifies the job. The 2411015 uses the same 1-1/4 inch tailpiece and the same body-through-the-bowl mounting as a pop-up, so the trap connection is unchanged. The difference is the lift rod: a grid strainer has no linkage, so the pop-up rod behind the faucet becomes dead. Many faucets have a plug or cap for that hole; if yours doesn't, you'll be leaving the rod in place and unconnected.

Brass. The body is brass construction with a chrome finish, which is the reason it holds up in commercial restrooms and high-traffic multi-family units where a plastic-bodied drain gets cracked by an over-tightened slip nut or a snake. Brass also lets you re-seat the strainer with fresh putty years later without the flange deforming.

Plan on plumber's putty or a silicone bead to seal the flange to the bowl, and the trap-side slip nut and washer to make up the 1-1/4 inch tailpiece joint. The strainer supplies the drain body and tailpiece; the P-trap itself is a separate part. If the old drain is being pulled, budget for a new trap washer rather than reusing the compressed one.

If the bowls all have overflows and 1-1/4 inch drain outlets, yes, the 2411015 standardizes them on one SKU. The overflow requirement is the thing that splits a fleet: bowls without an overflow need a non-overflow strainer body, so walk the units and sort them into those two groups before ordering a single quantity.