Cascading tub filler and overflow assembly

A tub filler and overflow assembly for mounting in an overflow opening in a tub wall, said assembly comprising:

• inner and outer bodies;
• a fastener connecting said bodies and adapted to draw them together to clamp toward opposed faces of the tub wall around the overflow opening;
• an overflow water outlet passage extending through said inner and outer bodies;
• a water inlet passage extending through said inner and outer bodies, said water inlet passage having an inlet defined by said outer body and an outlet defined by said inner body;
• and
• an inlet flow conditioning assembly supported by said inner body at said outlet of said water inlet passage;
• said outlet and said flow conditioning assembly defining a water discharge opening;
• said inlet flow conditioning assembly including a screen assembly in series flow relationship with said water discharge opening, and including a flow straightener upstream of said screen assembly;
• said screen assembly including a plurality of screen laminas each having a plurality of interstices for flow of water through the screen assembly;
• said flow straightener including a plurality of barriers dividing flow through the flow straightener into a number of separated flow segments;
• said water discharge opening, said screen assembly and said flow straightener having similar, elongated, generally rectangular shapes with opposed shorter walls and opposed longer walls, said barriers comprising vanes extending between said opposed longer walls, said vanes being parallel to one another and parallel to the direction of flow through said inlet flow conditioning assembly.