Mini Unit™ Universal Rough-In Box

SKU: TBN01001U
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We don't match the concealed system to each trim; instead we use a shared module. You can choose the functionality you need such as a thermostatic type or push button type.


  • Universal rough-in to allow easy customization of valves and trims without removing walls
  • Corrosion resistant solid brass valve body
  • 360 degree box design to minimize installation error
  • 1" tolerance adjustable to thinner or thicker walls
  • Compact body measured at 4.4" diameter and weighted 1.6 LBS for and effortless installation
  • Requires volume control valve or positive shut off valve

People Planet Water Certifications & Compliance

  • Toto Tip:
    Complies with California Proposition 65 warning requirements.
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Learn more about TOTO's People Planet Water Certifications & Compliance
TOTO People-Centered Design Smart Fact:
TOTO's Mini Unit™ unifies exterior sizes for concealed shower voaves creating a balance bathroom space.


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