Best Single Flush Toilets in 2026: 6 Picks Compared
The DeerValley Compact One-Piece is our top pick for a single flush toilet. It pairs an elongated bowl with a fully skirted one-piece design and a 1.2 to 1.4 GPF flush, a strong fit for most bathrooms. To choose the rest of this list, we compared the stated specifications in the product catalogue, including flush type, piece configuration, height, and bowl shape, and highlighted features like compact size and ADA comfort height. Prices are live from the store listing and update on the page.
6 picks from 2 toilets that match this guide with a price we can quote today, made by 26 makers. The prices below are current and each carries its read time.
Quick picks
| # | Pick | Toilet | Price |
|---|---|---|---|
| 1 | Best overall | DeerValley Compact One-Piece Toilet 1.28 GPF Single Flush Fully Skirted | $196.84 (as of 10/14/2026 22:54 PDT - Details) Typical price: |
| 2 | Best compact one-piece | HOROW HR-ST076W One Piece Toilet | |
| 3 | Best extra tall seat height | Tall Toilet 21 Inch | |
| 4 | Best ADA comfort height from DeerValley | DeerValley 19-Inch Extra Tall Toilet for Seniors | $233.10 (as of 10/14/2026 22:54 PDT - Details) |
| 5 | Best for 17-inch chair height | HOROW 17 Inch High Elongated Toilet with ADA Chair Height | |
| 6 | Best for maximum water savings | HOROW 17 Inch High Elongated Toilet with ADA Chair Height |
The best fit for you
- For small bathrooms: If floor space is limited, the compact one-piece models from DeerValley and HOROW are designed to fit tighter spaces without the extra seams of a two-piece toilet. See pick 1
- For seniors and accessibility: An extra tall seat between 17 and 21 inches can make sitting and standing easier. The DeerValley 19-inch and Los Flexi 21-inch models are the tallest in this list. See pick 4
- For maximum water savings: If cutting water use is your priority, the HOROW 17-inch model with under 1.2 GPF is the most efficient single flush here. See pick 6
Our 6 picks
1 Best overall
DeerValley Compact One-Piece Toilet 1.28 GPF Single Flush Fully Skirted
- Pieces
- One-piece
- Bowl shape
- Elongated
- Flush
- Single flush
- Gallons per flush
- 1.2 to 1.4 GPF
- Compact
- Yes
$196.84 (as of 10/14/2026 22:54 PDT - Details) Typical price: $229.17, 14% off
This one-piece toilet combines a fully skirted, compact silhouette with an elongated bowl and a 1.2 to 1.4 GPF single flush. It is the only pick with a soft-close seat in the listing, and the one-piece design reduces crevices where grime can hide.
Pros
- One-piece, fully skirted bowl for easier cleaning
- Elongated bowl for comfort
- Soft-close seat included
- Compact design saves floor space
Cons
- Height not stated by the seller
- Rough-in distance not stated by the seller
- GPF listed as a range rather than a single figure
Good fit if
- Small to medium bathrooms where space is tight
- Buyers who want a single-piece toilet with a quiet-close seat
Skip if
- You need an extra-tall or ADA-compliant height
- You prefer a two-piece toilet for simpler installation or lower weight
Verdict: The best all-around single flush toilet on this list for most bathroom renovations.
2 Best compact one-piece
Another one-piece model with a compact skirted design, it is a direct alternative to the DeerValley if you want a one-piece without a soft-close seat. The specs do not state GPF or bowl shape, so it is best for buyers who already have those details or care most about the piece configuration.
Pros
- One-piece, fully skirted design
- Compact footprint
- Single flush mechanism is simple
Cons
- Flush volume not stated by the seller
- Bowl shape not stated by the seller
- Height not stated by the seller
Good fit if
- Small bathrooms where every inch matters
- Anyone wanting a one-piece toilet without needing a soft-close seat
Skip if
- You need to verify flush volume before buying
- You prefer a specific bowl shape or a taller seat
Verdict: A solid one-piece single flush option if you can confirm the missing details locally.
3 Best extra tall seat height
Tall Toilet 21 Inch
- Pieces
- Two-piece
- Bowl shape
- Elongated
- Flush
- Single flush
- Gallons per flush
- 1.2 to 1.4 GPF
- Seat height
- Extra tall
- Rough-in
- 12 in
This two-piece toilet has an extra tall 21-inch seat height, the tallest stated among picks, plus a 12-inch rough-in and an elongated bowl. It is one of two extra-tall models with a clearly stated 12-inch rough-in in the listing.
Pros
- Extra tall 21-inch seat height, higher than standard
- Elongated bowl
- 12-inch rough-in stated
- Uses 1.2 to 1.4 GPF
Cons
- Two-piece design has more seams to clean
- No soft-close seat mentioned
- Height may be too high for shorter adults
Good fit if
- Taller users or those who want a higher seat
- Bathrooms with a 12-inch rough-in
Skip if
- You want a one-piece toilet for easier maintenance
- You need a standard 16-17 inch height
Verdict: The best extra tall choice for accessible comfort at a 21-inch height.
4 Best ADA comfort height from DeerValley
DeerValley 19-Inch Extra Tall Toilet for Seniors
- Pieces
- Two-piece
- Bowl shape
- Elongated
- Flush
- Single flush
- Gallons per flush
- 1.2 to 1.4 GPF
- Seat height
- Extra tall
$233.10 (as of 10/14/2026 22:54 PDT - Details)
This extra tall two-piece toilet has a 19-inch seat height as stated in the product name, and it uses 1.2 to 1.4 GPF. It shares the same elongated bowl and low-flush volume as several other picks but offers the specific 19-inch seat height and a comfort seat included.
Pros
- 19-inch extra tall height, specified
- Elongated bowl
- 1.2 to 1.4 GPF
- Comfort seat included
Cons
- Two-piece design
- Rough-in not stated by the seller
- No soft-close mention
Good fit if
- Seniors or people with mobility issues
- Anyone looking for an ADA-comfort height toilet
Skip if
- You want a compact toilet for a small bathroom
- You need a specific rough-in measurement before purchase
Verdict: A well-specified extra tall single flush toilet for accessible comfort.
5 Best for 17-inch chair height
HOROW 17 Inch High Elongated Toilet with ADA Chair Height
- Pieces
- Two-piece
- Bowl shape
- Elongated
- Flush
- Single flush
- Gallons per flush
- 1.2 to 1.4 GPF
- Seat height
- Extra tall
This HOROW model matches the other 17-inch high picks but its name explicitly mentions ADA chair height and a powerful 1.28 GPF single flush, while the specs sheet lists 1.2 to 1.4 GPF. It provides a lower extra-tall option than the 19 and 21-inch models.
Pros
- 17-inch chair height, a common ADA comfort height
- Elongated bowl
- 1.28 GPF mentioned in the product name
- Two-piece design with a compact footprint
Cons
- Two-piece design
- Specs list GPF as a range rather than an exact figure
- No rough-in stated
Good fit if
- Bathrooms that need an ADA-comfort seat without going over 17 inches
- Buyers who prefer a standard chair height
Skip if
- You need a one-piece toilet
- You want the tallest seat possible
Verdict: The go-to 17-inch high single flush toilet for accessibility without extra height.
6 Best for maximum water savings
HOROW 17 Inch High Elongated Toilet with ADA Chair Height
- Pieces
- Two-piece
- Bowl shape
- Elongated
- Flush
- Single flush
- Gallons per flush
- Under 1.2 GPF
- Seat height
- Extra tall
This HOROW model is the only pick with a stated flush volume under 1.2 GPF, making it the most water-efficient single flush toilet in this list. It keeps the same 17-inch chair height and elongated bowl as the other HOROW model.
Pros
- Under 1.2 GPF, the most efficient flush in this list
- 17-inch high toilet with elongated bowl
- Two-piece design
- Single flush simplicity
Cons
- Two-piece design
- Lower water use may require a more powerful bowl design, but performance is not specified
- No rough-in information
Good fit if
- Households focused on reducing water consumption
- Anyone who already has a 17-inch comfortable height preference
Skip if
- You are concerned about flush performance with very low water volume
- You need a one-piece toilet
Verdict: The top pick for maximum water savings among these single flush toilets.
Specifications side by side
| # | Toilet | Pieces | Bowl shape | Flush | Gallons per flush | Seat height | Rough-in |
|---|---|---|---|---|---|---|---|
| 1 | DeerValley Compact One-Piece Toilet 1.28 GPF Single Flush Fully Skirted | One-piece | Elongated | Single flush | 1.2 to 1.4 GPF | not stated | not stated |
| 2 | HOROW HR-ST076W One Piece Toilet | One-piece | not stated | Single flush | not stated | not stated | not stated |
| 3 | Tall Toilet 21 Inch | Two-piece | Elongated | Single flush | 1.2 to 1.4 GPF | Extra tall | 12 in |
| 4 | DeerValley 19-Inch Extra Tall Toilet for Seniors | Two-piece | Elongated | Single flush | 1.2 to 1.4 GPF | Extra tall | not stated |
| 5 | HOROW 17 Inch High Elongated Toilet with ADA Chair Height | Two-piece | Elongated | Single flush | 1.2 to 1.4 GPF | Extra tall | not stated |
| 6 | HOROW 17 Inch High Elongated Toilet with ADA Chair Height | Two-piece | Elongated | Single flush | Under 1.2 GPF | Extra tall | not stated |
How the picks were chosen
We started with a pool of single-flush toilets listed in our catalogue, then filtered for single-flush models. Six models met the criteria. From that group we shortlisted based on the manufacturer's stated specifications: flush volume, bowl shape, number of pieces (one-piece vs two-piece), seat height, and compact dimensions. We prioritized models with elongated bowls and water use at or near the WaterSense threshold, and we included models with extra-tall heights for accessibility. Prices are read live from the store listing at the time of writing and will update on the page. The toilets in this list have not been tested by our team; choices are based on published specifications and product information.
Picking the right one for you
Single flush vs dual flush
A single flush toilet uses the same amount of water for every flush, offering a simple and consistent operation. Dual flush toilets give you two buttons or a lever that lets you choose a lower volume for liquid waste and a higher volume for solid waste. Single flush models are often less complex, with fewer moving parts and a shorter learning curve, which can make them a good fit for households that prefer straightforward controls.
Flush volume and WaterSense
Flush volume is measured in gallons per flush (GPF). The current federal standard for toilets is 1.6 GPF, and the EPA WaterSense program certifies models that use no more than 1.28 GPF while still meeting performance criteria. All of the toilets in this list are single flush, and several state a volume between 1.2 and 1.4 GPF, while one states under 1.2 GPF. Lower GPF figures generally mean lower water use, but check the manufacturer's own specifications for details like drainline transport or bowl cleaning performance.
One-piece vs two-piece construction
One-piece toilets have the tank and bowl molded together, which eliminates the seam between them and makes cleaning the exterior simpler. Two-piece toilets have a separate tank that sits on the bowl, and they are often lighter to handle and easier to install one part at a time. Two-piece designs can have more crevices where dirt collects, but they are also a common and reliable configuration. In this list, two models are one-piece and four are two-piece.
Bowl shape, height, and accessibility
An elongated bowl is longer from front to back than a round bowl, providing more seat space. Five of the six picks state an elongated bowl, while one does not specify a shape. Seat height is measured from the floor to the top of the seat, and standard toilets are usually around 15 inches. Models around 17 to 19 inches are often called chair height or comfort height, and they can be easier for seniors or people with mobility issues to sit down on and stand up from. The ADA Standards set requirements for accessible water closets, including height and clear floor space, so check those guidelines if accessibility is a priority.
Rough-in and installation
Rough-in is the distance from the finished wall behind the toilet to the center of the floor drain. The most common measurement is 12 inches, but 10 and 14 inch rough-ins also exist. Before buying, measure this distance in your bathroom. In this list, the Los Flexi extra tall model states a 12-inch rough-in, while the other models do not specify it in the catalogue. If a rough-in is not stated by the seller, you will need to confirm it before installation.
Questions
What is a single flush toilet?
A single flush toilet uses the same amount of water for every flush, whether you are flushing liquid or solid waste. It is the simplest type of flush mechanism, with one lever or button that activates a full flush each time. Dual flush toilets instead have two buttons or a lever with two settings, allowing a smaller volume for liquid waste and a larger volume for solid waste.
What does GPF mean?
GPF stands for gallons per flush. It is a measurement of how much water the toilet uses per flush. The federal standard for toilets is 1.6 GPF, while WaterSense labeled toilets must use 1.28 GPF or less. Lower GPF models use less water, which can reduce water bills over time, but it is important to choose a model that still flushes effectively.
Are WaterSense toilets single flush?
WaterSense covers both single flush and dual flush toilets. The program certifies models that meet its water efficiency and performance criteria, including a maximum flush volume of 1.28 GPF for single flush toilets. A WaterSense label indicates the toilet has been independently certified to meet those requirements, but not all single flush toilets carry the label.
What is an elongated bowl?
An elongated bowl is longer from front to back than a round bowl, providing more seat area and legroom. Many people find elongated bowls more comfortable, especially for taller users. Most of the toilets in this list have an elongated bowl, but one does not state its bowl shape, so you may need to check the manufacturer's details if that matters to you.
Do I need a toilet with an ADA-compliant height?
ADA Standards for water closets include a seat height range of 17 to 19 inches, as well as specific clear floor space and grab bar requirements. If you are designing a bathroom that must comply with the ADA, you should follow those standards. For home use, a comfort height toilet around 17 to 19 inches can be more comfortable for seniors or people with mobility issues, but it is not required for residential bathrooms.
Revision notes
- : First published.