American Standard Pc Aerator 1.5Gpm-Male-15/16-27Uns-Rp - AMS-M922881

It's a male-thread aerator, 15/16-27 UNS. That means the threads are on the outside of the aerator and it screws up into a spout with matching female threads. 15/16-27 is the standard male size on most kitchen and lavatory spouts in North America, so if your old aerator threaded in with the threads showing on the outside, this replaces it. If your spout has external threads and the old aerator screwed on over them, you need a female aerator instead, not this one.

Yes. It complies with California AB1953 and Vermont S152, the two state lead-content laws that govern wetted plumbing components. That covers potable water installs in both states.

Yes, provided your spout takes a male 15/16-27 aerator. The American Standard M922881 is a direct screw-in replacement, no tools beyond an aerator key or pliers and a rag, and no change to the faucet body or supply lines. Flow drops from 2.2 to 1.5 gpm, a 32% reduction. On a fleet of units that's the standard low-cost flow retrofit.

Maximum flow is 1.5 gpm, which is a 32% reduction against a standard 2.2 gpm aerator. On a multi-unit or facility retrofit that is the easiest per-fixture water reduction available, since it's a screw-in change with no plumbing work. The 2.2 gpm figure is the baseline American Standard states the 32% against.

A pressure compensating aerator holds a constant flow across the whole supply pressure range, rather than running harder as pressure climbs. That matters in buildings where pressure varies floor to floor or swings with demand: a non-compensating 1.5 gpm aerator can exceed its rating at high static pressure, while the American Standard M922881 stays at its 1.5 gpm maximum. If you're standardizing flow across a property for a water program, the compensating type is the one that holds the number.

Three finishes: Chrome (M922881-0020A), Brushed Nickel (M922881-2950A), and Estate Bronze (M922881-1810A). The aerator face is visible at the end of the spout, so on anything other than chrome you'll want to match the faucet finish or it reads as a mismatched part. Order by the finish suffix, not just the base number.

The M922881 is a faucet aerator with no fixture restriction beyond the thread, so it fits any spout with male 15/16-27 threads, kitchen or lavatory. What decides suitability is the flow: 1.5 gpm is comfortable at a lavatory, and it will fill a sink more slowly than a 2.2 gpm kitchen aerator. If pot filling speed matters in a commercial kitchen, size that in before you standardize on 1.5.