American Standard 6-Inch 2.5 gpm/9.5 L/min Rain Showerhead - AMS-1660660

The 1660660 rain showerhead is a 2.5 gpm / 9.5 L/min maximum flow rate head. That is the federal maximum for showerheads, so it will pass in most jurisdictions, but it is not a low-flow head. If you are specifying for California, Colorado, New York or another state that has adopted a 1.8 or 2.0 gpm cap, or chasing a green building credit, you need a lower-rated head instead.

Yes. It is a wall-mount showerhead sold as a head only, and showerheads and shower arms in North America are standardized on 1/2 inch NPT, so it goes onto the arm that is already in the wall. You are not opening the wall for this swap. If you want the head to hang further out over the shower floor, change the arm, not the head.

It is built as an easy-clean head, meaning the spray face nozzles wipe clear of scale with a thumb or a rag, no disassembly and no soaking. For a property manager running hard water across a lot of units, that is the difference between a two-minute wipe on a turnover and a service call to pull and descale the head.

No. The 1660660 is the showerhead alone, in chrome or brushed nickel. If the existing arm is pitted, the wrong finish, or the wrong projection for a rain head, order an arm and escutcheon separately and match the finish. Budget for thread sealant tape on the arm threads too.

Two finishes: chrome, MPN 1660660.002, and brushed nickel, MPN 1660660.295. Chrome is the standard match for most multi-family and institutional trim already in the field; brushed nickel pairs with warmer or satin valve trim. Order by MPN if you are standardizing across a building, since the finish suffix is the only thing separating the two.

A rain head throws a soft, wide, drenching pattern straight down and is the better pick for a hotel, apartment or spec-home bath where the look sells the unit. It is not the pick where a user needs a concentrated rinse or where the shower is used for cleaning; a conventional multi-function head with a spray selector, or a handshower, does that better. The 1660660 is a fixed head with no diverter and no spray settings, so if the job calls for ADA-style handheld use you need a slide bar and handshower instead.