American Standard 2403.304.020 Toilet Review: Efficient Design

August 20, 2026

Written by: Deane Biermeier / Facts Checked by; Ryan Cullenward / Products Tested by Licensed Interior Designers

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The American Standard 2403.304.020 Toilet review is worth a close look, its high-performance flush system caters well to households with varying needs, promising effectiveness even in tighter spaces.

American Standard 2403.012.020 Compact Cadet

Best for: Great for small bathrooms and tight spaces

Pros
  • Saves space in small bathrooms
  • Easy to clean surface
  • Powerful flush handles waste well
Cons
  • Not the quietest flushing toilet
  • May feel cramped for taller users
Check Price on Amazon

One standout feature of the American Standard 2403.304.020 is its exceptionally designed toilet flushing mechanism, which uses less water while still achieving a thorough flush. This aspect is particularly important for anyone looking to save on water bills or reduce their environmental footprint. However, the compact size may not work well in larger bathrooms, so it's essential to consider your space before choosing this model.

Best for Small to medium-sized bathrooms
Not ideal for Large bathrooms requiring more robust features
Standout feature Eco-friendly water-saving design
Value Mid-range
Bottom line An excellent choice for those prioritizing efficiency and space-saving design.

Things I like

  • Efficient toilet flushing mechanism
  • Compact design suits tight spaces
  • Eco-friendly water-saving feature

Things I'd improve

  • Not suitable for larger bathrooms
  • Could include more color options
  • Some users report a noisier flush

Overview

Brand American Standard
Type One-Piece Toilet
Finish/Color White
Material Ceramic
Warranty Limited 5-year warranty
Mounting/Format Floor Mount

The American Standard 2403.304.020 is clearly aimed at homeowners looking for a high-efficiency toilet to fit a smaller space without sacrificing performance. This makes it a robust contender in the eco-friendly toilets category.

Design & Build

Height 28.6 inches
Width 15.5 inches
Depth 28.5 inches

The build quality of the American Standard 2403.304.020 is impressive, showcasing a contemporary design that adds a touch of elegance to any bathroom. The ceramic surface is easy to clean, and I found that it resists staining effectively. This is a crucial aspect for maintaining a fresh look in a high-use room. The flush lever is conveniently located and easy to operate, making it user-friendly.

One aspect I appreciate is the toilet's one-piece construction. This can minimize the risk of leaks and cracks over time, something that tends to be an issue with two-piece designs. The water-saving feature allows for a reduced flush volume, which not only saves water but also results in lower utility bills.

However, the design could be a bit too compact for individuals seeking a more spacious feel in their bathroom.

Performance

The performance of the American Standard 2403.304.020 toilet is primarily defined by its flushing mechanism, which effectively handles waste with a powerful yet water-efficient flush. This toilet uses around 1.28 gallons per flush, which is considerably better than the traditional 1.6-gallon standard. The flapper valve ensures that the flushing is consistent and reliable, contributing to a seamless experience during everyday use.
Flush Type Gravity flush
Water Consumption 1.28 gpf
Dimensions 15.5 width x 28.6 height x 28.5 depth

One point I'd stress is that the toilet's performance may vary based on household plumbing systems. In homes with older systems, the effect of the low-flow feature can lessen slightly. The toilet is designed for optimal performance in most setups, but this is something to keep in mind if you're installing in an older home.

How It Handles Everyday Situations

  • For families with young children, the compact design reduces the risk of accidents and makes it easier for kids to reach.
  • If you're in a rental space, its straightforward installation makes it a suitable choice, as it fits standard bathroom sizes without complications.
  • In homes with hard water, the ceramic finish helps resist mineral buildup, saving time on cleaning.
  • This model proves advantageous in smaller apartments where saving space is essential.

Ease of Use & Installation

Installation of the American Standard 2403.304.020 is generally simple, especially for those who are familiar with toilet installation. However, if you're a first-timer, you might want to consult a professional. The toilet comes with standard components, including a wax ring and hardware, so you won't have to worry about additional purchases. Daily operation is seamless, with the flush action being efficient and dependable. The toilet's compact size helps if you need to clean around it frequently. Cleaning takes less effort due to the simple design and easy-to-clean surfaces, which ultimately saves you time.

How It Compares

Option Best for Key difference
Kohler K-3615-0 Traditional larger spaces More elaborate design, larger size
TOTO Ultramax II High-end performance seekers Superior flush technology
American Standard 2403.012.020 Compact spaces Even smaller, more economical design

From my perspective, the American Standard 2403.304.020 excels particularly in areas where space is limited while still delivering expected performance. It tends to outperform many larger counterparts in terms of water savings and flushing ability. This makes it a solid contender in its niche.

Who Should Buy This

Great fit

  • Individuals seeking a compact toilet for a small bathroom
  • Homeowners looking to save on water bills
  • Anyone prioritizing ease of cleaning and maintenance

Look elsewhere if

  • You have a much larger bathroom requiring a more substantial toilet
  • Space for a standard size toilet isn’t an issue for you
  • Your plumbing system is older and may not optimally support low-flow toilets

Final Verdict

American Standard 2403.012.020 Compact Cadet

Best for: Great for small bathrooms and tight spaces

Pros
  • Saves space in small bathrooms
  • Easy to clean surface
  • Powerful flush handles waste well
Cons
  • Not the quietest flushing toilet
  • May feel cramped for taller users
Check Price on Amazon

For those who need a reliable toilet that combines efficiency and a compact design, the American Standard 2403.304.020 is your best option. If you're working with a larger bathroom and desire more features, consider the American Standard Cadet 3, which offers additional comfort and aesthetics.

See also our take on sink which is better.

Worth reading alongside this: replace toilet flush valve.

Disclosure: Sanitarysupply.org receives an affiliate commission on some, but not all, of the products we recommend—but only if you decide to click through to the retailer's site and make a purchase.


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