How much does this cost to the nearest dollar?

Grohe Retro-Fit 25 Shower System, Starlight Chrome
Ideal for retrofit or renovation, the GROHE Retro-Fit Shower System transforms an existing showerhead installation into a luxurious shower system with a showerhead plus the added convenience of a hand shower. The upgrade is quick and easy to install. Simply replace an existing shower arm – no need to change the tiles or alter any in-wall plumbing. Once installed, the GROHE Retro-Fit Shower System is also easy to use six possible positions on the diverter allow you to choose your perfect setting for hand or showerhead, mixed or Eco sprays. A renovation upgrade without the renovation price tag GROHE Starlight chrome finish super resistant against scratches and soiling Switch between hand shower and showerhead via built-in diverter 

Price is $508.00
Price: $507.5