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Model # SM-WC324

Store SKU # 1003542306

0.8/1.28 GPF 2 ft. x 4 ft. Concealed Dual Flush in Wall Toilet Tank Carrier for Back to Wall Toilet in White

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  • In-wall system leaves floor free with a sleek and stylish look
  • ECO friendly with superior flush performance
  • Adjustable height allows bowl setting to personal preferance
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Product Details

Necessary for back-to-wall toilet bowl installation the Concealed In-Wall Tank Carrier is a durable and dependable choice. An adjustable steel frame allows a broad selection of mounting heights for toilet bowls paired with it. The insulated tank reduces flush noise and protects from condensation and sweating.
  • Compatible with 2x4 stud installation areas for residential walls
  • Dual high-performance gravity flush allows for the choice between full or partial flushing saving significant water with a - 0.8 / 1.6 gallon per flush (gpf)
  • Front panel is equipped with a flush actuator opening for easy access to the inner tank and shut off valve
  • The flexible mounting methods allow this tank to fit with many bathroom projects
  • Steel framing rated for 500lbs
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Dimensions: H 18.75 in, W 19.5 in, D 3.25 in


Flush Valve Size (in.)2.75Product Depth (in.)3.25 in
Product Height (in.)18.75 inProduct Width (in.)19.5 in


Color FamilyWhiteColor/FinishWhite
Commercial / ResidentialResidentialFeaturesInsulated Tank
Flushing TechnologyGravity FedFlushing TypeDual Flush
Gallons Per Flush1.28IncludedComplete Kit
MaterialPlasticModels used withSM-WT514, SM-WT530, SM-WT555
Product Weight (lb.)8.2 lbReturnable90-Day
Trip Lever LocationTop

Warranty / Certifications

Certifications and ListingsNo Certifications or ListingsManufacturer Warranty1 Year Limited Warranty

Questions & Answers

Q:I bought the 2x4 model for a new construction. The diagram shows it should be 3.25" thick but mine is 4.25" thick but I've confirmed it is the 2x4 model. Am I missing something? This won't fit inside my 2x4 wall
by|Dec 2, 2022
1 Answer
Answer This Question

A:  Hi there, We do apologize for the inconvenience. This unit completely assembled is 5 1/2" thick. Without the roughing box, the unit is 4.75" thick. You can view these dimensions on our guide below: https://cdn.shopify.com/s/files/1/1585/4485/products/SM-WC424_99_1800x1800.jpg?v=1657645800 -Swiss Madison Team

by|Nov 14, 2023
    Q:Could this unit be installed straight down into traditional bowl as long as you build out support from the wall behind?
    by|Aug 29, 2022
    1 Answer
    Answer This Question

    A:  Telephone Swiss Madison direct. They're great & will assist you. My installation was a new build so I have no idea, sorry.

    by|Aug 29, 2022
      Q:Where can I buy Wall Carrier Tank Clips for 2x6 studs? Mine is for 2x4 studs, but we’ll need to install it in a 2x6 wall.
      by|Jul 14, 2022
      1 Answer
      Answer This Question

      A:  The 2x4 compatible unit can be installed in 2x6 installation areas no part swap needed! -The Swiss Madison Team

      by|Jul 28, 2022
        Q:Is there a shut-off valve on the supply line that is accessible after installation. Looking at t...
        by|Jul 30, 2020
        1 Answer
        Answer This Question

        A:  Hello, There is a shut-off valve inside of the in wall tank and it is accessible by removing the actuator plate from the front. Thank you, The Swiss Madison Team

        by|Aug 11, 2020
          Showing 1-4 of 7

          Customer Reviews

          2.7 out of 5
          • 2.7
            out of 3 reviews
          • 100% recommend this product
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          2 found this review helpful
          The product looks nice. My concern is much lower warranty duration than other toilets. Installati...
          The product looks nice. My concern is much lower warranty duration than other toilets. Installation instructions are poor. The product as in the box will be very deep for most residential installations. After my installation, I learned that actuator plate assembly can be trimmed to reduce Assembly depth. This very important information that is missing from the installation guide.
          • Verified Purchase
          • Recommended
          4 found this review helpful
          Rating provided by a verified purchaser...
          Rating provided by a verified purchaser
          • Verified Purchase
          Showing 1-3 of 3 reviews