hansgrohe iBox Universal Leak Preventing Valve Rough-in with Service Stop for Standard Shower Trims + hansgrohe 16181181 Exposed Thermostatic Basic Set - - Amazon.com
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Hansgrohe Shower Set with 12" Showerhead and Handheld in Brushed Nickel (includes Valve) | Free Shipping - Modern Bathroom
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Can you use a different shower trim/valve with a different showerhead