Toto WT173M TOTO DUOFIT In-Wall Dual Flush Tank System, with Copper Supply Line, Auto Flush, 1.28 and 0.8 GPF - WT173M

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TOTO DUOFIT In-Wall Dual Flush Tank System, with Copper Supply Line, Auto Flush, 1.28 and 0.8 GPF - WT173M

SKU: 795522
$ 500.48 / ea
Save 48% · Retail: $956.00

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Auburn Alabama Warehouse
Ships in 1-2 days
$516.03/ea 37
Sacramento California Warehouse
Ships in 2-3 days
$581.39/ea 21
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Available to Ship in 3-4 weeks
$500.48/ea

About the TOTO DUOFIT In-Wall Dual Flush Tank System, with Copper Supply Line, Auto Flush, 1.28 and 0.8 GPF - WT173M

The TOTO WT173M is a DuoFit in-wall tank intended for use with the CWT4474047CMFG#MS wall-hung toilet. This tank is designed with the Dual-Max flush system, an advanced flushing mechanism that gives you integrated control and powerful flushing motion for the overall toilet system. It flushes away 100% of the water from the tank down through the rim, leaving no debris on the surface. Efficiently working at a flow rate of 1.28 GPF/4.8 LPF, this toilet tank uses less water while delivering optimum performance. It is a great way to save water and money at the same time!


To conform to your needs and preferred height, this in-wall toilet tank from TOTO has an adjustable 15"–19" mounting height. It includes a 2" x 6" polyethylene outlet and an insulated polyethylene tank that ensures zero leaks and prevents sweating, especially in areas of high humidity, giving you the confidence of long-lasting performance. For an easier installation, this toilet tank is pre-plumbed for a Washlet connection with the copper supply line.


To complete a wall-hung toilet system, this toilet tank can be paired with any of these (CT437FGT20, CT447CFGT60, CT449CFGT60, CT426CFGT40, and CT428CFGT40) wall-hung toilet bowls and any of these ( YT920#MS, YT920#WH, YT930#MS, YT930#WH, YT970#SS, or YT980#SS) push plates. If you want to have an integrated unit with a complete wall-hung toilet system, you can get the CWT4474047CMFG#MS toilet. Please note that both the toilet bowls and the push plates are sold separately. 


Upgrade your bathroom game with this TOTO WT173M DuoFit in-wall tank! Order yours today and get it at an affordable price here at PlumbersStock!

Manufacturer: Toto
Product: In-Wall Tank System
Product Collection: DuoFit
Product Theme: Modern
Mount Type: In-wall
Flow Rate: 1.28 and 0.9 Gallons Per Flush
Depth: 3-1/2''
Room: Bathroom
Other Info: IAPMO Certified
  UPC certified
Mpn # WT173M
Shipping Dimensions 28.0" x 20.0" x 6.0"
Weight 43.00 lbs.
  • Efficient Dual Flushing System: This tank's dual flushing system offers both a full flush and a half flush option, using only 1.28 gallons per flush (GPF) for a full flush and 0.9 GPF for a half flush. It helps conserve water and reduce utility bills while maintaining efficient performance.
  • Convenient Auto Flush: The flush tank system can be equipped with an automatic flush function, providing hands-free operation for improved hygiene. This feature is particularly useful in high-traffic commercial settings or for users seeking added convenience.
  • Customizable Mounting Height: Allowing for an adjustable mounting height between 15 inches and 19 inches, it accommodates different user preferences and bathroom designs. Thus ensuring comfort and accessibility for users of varying heights.
  • Heavy-Duty Support: Designed for robust performance, the flush tank system can support up to 880 pounds, ensuring durability and reliability. This high weight capacity makes it suitable for a wide range of users and applications, including commercial environments.
  • Versatile Installation Options: The system can be installed in commercial settings with 2" x 6" wall studs or in residential settings with an optional kit for 2" x 4" wall studs. Its versatility makes it adaptable to various construction standards and requirements.
  • Leak-Proof Insulated Tank: This tank is made from a single piece of blow-molded, insulated polyethylene, which helps prevent leaks and condensation. This construction ensures long-lasting performance and reduces maintenance needs.
  • Included Polyethylene Outlet: This flush tank system includes a 2" x 6" polyethylene outlet, providing a secure and efficient waste discharge path. As a result, its components contribute to the overall reliability and functionality of the system.
  • WASHLET Ready: The system comes pre-plumbed for easy connection to a WASHLET, simplifying the installation process and enhancing the user's experience. This feature allows for quick and convenient integration of advanced toilet seat options.
  • Durable Copper Supply Line: A durable copper supply line is included with the system, ensuring a reliable and long-lasting water connection. Copper is known for its corrosion resistance and high-quality performance, making it a superior choice for plumbing applications.

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