American Standard Aer Pca Laminar Fl 1.0Gpm 15/16-27-Male - AMS-M922890

It uses 15/16 inch (24 mm) male threads, which is the standard male aerator thread on most kitchen and lavatory spouts. If the inside of your spout tip is threaded (female), you need a female-thread aerator instead, not this one. Check by removing the existing aerator: if its outer edge is threaded, this male unit is the match.

No. An aerator mixes air into the water for a soft, cloudy stream. A laminar device, which is what the M922890 is, delivers a clear non-aerated stream of parallel water columns with no air drawn in. Healthcare facilities often specify laminar outlets on patient-care and handwash sinks for that reason. If you want the softer aerated feel on a residential faucet, order an aerator rather than this laminar unit.

1.0 gpm. That is a low-flow rate suited to lavatory and handwash faucets. If the sink needs faster fill, such as a kitchen or utility bowl, a 1.5 or 2.2 gpm outlet is the better choice at the same 15/16-27 male thread.

Chrome is the finish offered, under part number M922890-0020A. It matches polished chrome faucets. On a brushed nickel or matte black spout the chrome ring will be visible at the tip, so for those you would want the matching finish version of the outlet.

No extra parts. The M922890 threads directly onto the spout in place of the old outlet, and the washer arrangement comes with the assembly. Hand tight is usually enough; if the old one is scaled in place, an aerator key or padded pliers gets it off without marring the finish. Nothing about the faucet body or supply lines is touched.

Genuine American Standard, ordered as M922890-0020A. For facilities standardizing on American Standard lavatory faucets, that means the thread pitch and seating match the factory outlet the faucet shipped with, so you are not chasing leaks at the spout tip from a near-fit generic.