American Standard 1.0 gpm/3.8 L/min Pressure-Compensating Aerator - AMS-M922992

It has 15/16 inch (24 mm) male threads, which is the standard male thread size on most residential and commercial kitchen and lavatory spouts. If your spout has internal (female) threads, this one screws in. If your spout instead has male threads on the outside and your old aerator threaded on over them, you need a female-thread aerator instead, not this part.

A pressure-compensating aerator holds the flow at its rated 1.0 gpm (3.8 L/min) across a range of supply pressures, so a high-pressure riser in a building does not push more water through than the fixture is rated for. A plain aerator's output climbs with line pressure. For a property manager standardizing flow across a lot of lavatories, that consistency is the whole reason to specify this style.

For a kitchen sink, usually yes. The M922992 is a 1.0 gpm (3.8 L/min) aerator, which is a lavatory and handwash flow rate. Pot filling and rinsing at that rate is slow. Use it on bathroom lavatories, restroom fixtures, and anywhere you are chasing a low-flow water target; put a higher-rate aerator on the kitchen spout.

It is a genuine American Standard repair part, ordered as M922992-0020A in chrome. That matters if you are maintaining American Standard faucets under an existing spec and want the replacement to match the original flow rate and thread rather than guessing with a universal aerator.

Chrome only, under part number M922992-0020A. On most faucets only the outer ring of the aerator shows, so chrome reads as a near match on polished chrome and brushed nickel spouts; on a dark bronze or matte black faucet the ring will be visible.

Normally no. Aerators of this type thread on by hand, so you back the old one out counterclockwise looking up at the spout and thread the new one in. If mineral scale has seized the old one, wrap the housing in a rag and use smooth-jaw pliers so you do not chew up the chrome. Keep the old washer seat clean and do not overtighten.