Is the Starlight Chrome more of a satin or brushed chrome vs. chrome? It is difficult to determine by the picture shown.
A. Starlight Chrome is a very Polished Chrome. It is not Satin or Brushed. It is a very shiny Chrome.
what is the diameter of the trim piece a the wall
A. The diameter of the trim for the Grohe 19 837 is 2 5/8".
Which rough-in valve is needed for this piece the 29 273 or 29 274 - how do you know which one to order?
A. The Grohe 19 837 can be used with either. They are both appropriate. The 29 273 has 1/2" pipe connections and the 29 274 has large 3/4" pipe connections to allow for more water if you have multiple outlets that require more water flow.
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