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TOTO WT152M#01 25 3/8" Duofit In-Wall Tank System with 1.6 GPF & 0.9 GPF Copper Supply in Cotton White


Product Specifications

Product Type Toilet Tanks
Finish/Color White
Style Modern/Contemporary
Warranty 1 Year Limited Warranty


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About TOTO WT152M#01 25 3/8" Duofit In-Wall Tank System with 1.6 GPF & 0.9 GPF Copper Supply in Cotton White

This Duofit In-Wall Tank System with 1.6 GPF and 0.9 GPF Copper Supply in Cotton White offers great function and value for your toilet. This fixture is part of TOTO's decorative collection, so make sure to check out other styles of fixtures to accessorize your products.
  • Dual max flushing system low consumption(1.6 GPF & 0.9 GPF)
  • Average Flush: 1.28 GPF
  • Saves 9" of floor space compared to standard floor mounted toilet
  • Adjustable Mounting Height: 15"- 19"
  • Supports up to 880 lbs
  • Commercial 2" x 6" or optional residential installation with 2" x 4" wall studs with waste outlet kit
  • 1-piece blow molded polyethylene tank to prevent leaks
  • Polyethylene outlet included 2" x 6"
  • Pre plumbed for optional Washlet connection
  • Complete with #01 Cotton bolt caps


  • Carrier System: ASME A112.6.2
  • Tank Trim: IAPMO PS50, CSA B125.3, ASSE1002
  • Certifications: IAPMO (cUPC), and others
  • Code compliance: UPC, IPC, NSPC, NPC Canada, and others

Key Features & Innovations


A partnership program of the U.S. Environmental Protection Agency (EPA) makes it easier to save water and protect the environment by identifying high efficiency products that perform well. The WaterSense label was created to encourage manufactures to produce water efficient plumbing fixtures and to develop a system to help consumers recognize these products. that have been performance tested and validated by several agencies.

As members of the EPA’s WaterSense Steering Committee, TOTO water efficiency specialists advised the EPA on developing product performance criteria for the WaterSense program. TOTO products are recognized is part of the EPA’s National Environmental Achievement Track, the “gold standard” for facility-based environmental performance, recognizing environmental excellence by encouraging facilities with strong environmental records to go above and beyond legal requirements. TOTO is also a partner in the EPA’s innovative collaboration with the freight industry to increase energy efficiency while significantly reducing greenhouse gases and air pollution.

  • Qualify as high efficiency toilets (1.28 GPF or less)
  • Have a minimum soybean paste flush score of 350 uncased grams
  • Meet the los angeles department of water and power supplementary pricing specification regarding trim quality and tank volume
  • Have third party testing agencies conducting product performance testing and validation


The Dual-Max flushing system is a great example of TOTO’s industry leadership, featuring a balanced approach in the design of the bowl and trapway, coupled with an advanced flushing mechanism. The system lets you choose between 0.9 or 1.6 gallons per flush, whatever amount fits your needs. This sensible approach to water consumption reduces your average consumption to 1.13 gallons per day.

  • Integrated control
  • Advanced flushing mechanism
  • Choice between 0.9 GPF to 1.6 GPF
  • Optimizes water conservation

Universal Height

Central to TOTO Total Design is taking into account people of all ages and abilities. Universal Height offers sinks and toilets at a more manageable height, making the bathroom more accessible and enjoyable for everyone. This simple design principle allows all people, from the beginning of their days through the rest of their lives, to completely enjoy their bathroom experience, regardless of age or ability.

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