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Toilet Review
HOROW T0338W One-Piece Compact Toilet Review: ADA Height Meets Short Projection for Small Bathrooms
Real specs, MaP flush scores and aggregated owner feedback — no paid placements.
Why Trust This Review
- MaP flush-test data from map-testing.com
- Published manufacturer specifications only
- Aggregated owner reviews from multiple retailers
- Independent analysis — no manufacturer compensation
Review updated June 2026.
Quick Verdict
The HOROW T0338W is a solid choice for small bathrooms that need ADA-compliant height without taking up floor space. Its 26-inch projection is genuinely compact, but the lack of a published MaP score and no WaterSense certification mean you are buying on faith rather than data. If space is your top constraint, this one delivers.
| Spec | Value |
|---|---|
| MaP Score | Not published |
| GPF | 1.28 |
| Flush System | Siphon jet |
| Trapway Size | 2.25-inch |
| Height | ADA compliant (16.5 in) |
| Rough-In | 10/12-inch |
| Seat Included | Yes |
| WaterSense | No |
| Warranty | 1 year |
How powerful is the HOROW T0338W flush?
The HOROW T0338W uses a siphon jet flush system rated at 1.28 gallons per flush, but the manufacturer has not published a MaP score from map-testing.com. Without a MaP score, which measures the grams of solid waste cleared in a single flush, we cannot quantify its flush power against industry benchmarks. Owner reports generally indicate adequate performance for normal household use, but heavy waste may require a second flush.
Expert Take
The missing MaP score is a notable gap. Most toilets in this price bracket publish scores between 800 and 1000 grams. Without that data, you are relying on anecdotal evidence. The 2.25-inch trapway is standard and should handle normal waste, but if you need verified high-waste performance, look for a model with a published MaP score of 900 or higher.
How water-efficient is the HOROW T0338W?
The HOROW T0338W uses 1.28 gallons per flush, which is below the federal maximum of 1.6 GPF but above the WaterSense threshold of 1.28 GPF. However, it is not WaterSense certified, meaning it has not been independently verified to meet EPA efficiency and performance standards. For a toilet that uses this little water, certification matters because it confirms the flush still works well with reduced volume.
Expert Take
While 1.28 GPF is technically water-efficient, the lack of WaterSense certification is a red flag. WaterSense toilets must pass rigorous MaP testing at 1.28 GPF or less. Without that certification, you have no guarantee that the HOROW T0338W will clear waste effectively at this low water volume. If water savings are your priority, a WaterSense-certified model offers more confidence.
What do owners say about the HOROW T0338W?
Aggregated owner feedback from multiple retailers highlights three main themes: the compact 26-inch projection is praised for fitting tight spaces, the ADA height is comfortable for taller users and those with mobility concerns, and the included seat is a convenient bonus. Negative feedback centers on inconsistent flush performance, occasional clogging with larger waste, and some reports of the seat feeling flimsy. A few owners mention the dual rough-in option (10 or 12 inches) is helpful for retrofit installations.
Expert Take
The owner consensus aligns with the spec sheet: this toilet excels at space-saving and accessibility but falls short on flush reliability. The compact design is its strongest asset, but the trade-off is a flush system that may not satisfy heavy-use households. If you have a guest bathroom or powder room, it is likely fine. For a primary bathroom, consider a model with stronger flush credentials.
How does the HOROW T0338W compare to similar toilets?
Compared to the TOTO Drake Two-Piece (1.28 GPF, WaterSense certified, MaP score of 1000 grams), the HOROW T0338W offers a shorter projection (26 inches vs 28 inches) and a lower price point, but lacks WaterSense certification and a published MaP score. The TOTO Drake is a proven performer with verified flush power, while the HOROW is a budget-friendly space-saver. If flush reliability is critical, the TOTO is the safer bet. If space is your primary constraint and budget matters, the HOROW may work.
Expert Take
The comparison highlights a fundamental trade-off. The HOROW T0338W is not trying to compete on flush power; it is competing on footprint and price. If you need a toilet that fits a 26-inch depth, options are limited. The TOTO Drake is better in every performance metric but takes up more space and costs more. Choose based on your priority: space or flush confidence.
Good fit if you...
- Need a compact toilet with a short 26-inch projection for a small bathroom or half bath
- Require ADA-compliant height (16.5 inches) for accessibility or comfort
- Want a one-piece design for easier cleaning and a modern look
- Appreciate the dual rough-in option (10 or 12 inches) for flexible installation
Skip it if you...
- Need verified flush performance with a published MaP score
- Prefer WaterSense-certified toilets for guaranteed efficiency
- Expect a premium seat or longer warranty (only 1 year)
Frequently Asked Questions
What is the MaP score of the HOROW T0338W?
The manufacturer has not published a MaP score for this model. MaP (Maximum Performance) scores measure the grams of solid waste a toilet can clear in a single flush. Without this data, flush power cannot be independently verified.
Is the HOROW T0338W WaterSense certified?
No, the HOROW T0338W is not WaterSense certified. While it uses 1.28 gallons per flush, which meets the WaterSense water usage threshold, it has not been certified by the EPA program that verifies both efficiency and performance.
Does the HOROW T0338W come with a seat?
Yes, the toilet includes a seat. This is a convenient bonus, though some owners report the seat feels less durable than aftermarket options.
What is the rough-in size for the HOROW T0338W?
The HOROW T0338W supports both 10-inch and 12-inch rough-in measurements, giving you flexibility for different bathroom layouts.
Is the HOROW T0338W ADA compliant?
Yes, the toilet has a 16.5-inch seat height, which meets ADA requirements for accessibility. This makes it easier for individuals with mobility issues or taller users to sit and stand.
What is the projection of the HOROW T0338W?
The toilet has a short projection of 26 inches from the wall to the front of the bowl, making it ideal for small bathrooms or tight spaces.
How many gallons per flush does the HOROW T0338W use?
It uses 1.28 gallons per flush, which is below the federal standard of 1.6 GPF but not as low as some ultra-high-efficiency models that use 1.0 GPF or less.
What type of flush system does the HOROW T0338W use?
It uses a siphon jet flush system, which creates a siphoning action to pull waste from the bowl. This is a common and generally reliable flush technology.
What is the trapway size on the HOROW T0338W?
The trapway is 2.25 inches, which is a standard size for residential toilets. Larger trapways (2.5 inches or more) can help reduce clogging.
What warranty does the HOROW T0338W have?
The toilet comes with a 1-year warranty, which is shorter than the industry standard of 5 to 10 years for many competing models.
Is the HOROW T0338W a one-piece toilet?
Yes, it is a one-piece design, meaning the tank and bowl are molded together. This makes cleaning easier and reduces crevices where dirt can accumulate.
Does the HOROW T0338W have CEFIONTECT?
No, the HOROW T0338W does not feature CEFIONTECT or any similar glaze technology. CEFIONTECT is a proprietary TOTO coating that repels waste and makes cleaning easier.
Sources
- MaP Flush Testing Program, map-testing.com
- EPA WaterSense, epa.gov/watersense
- Manufacturer published specifications
Our Verdict
The HOROW T0338W is a space-saving, ADA-compliant one-piece toilet that fits small bathrooms well. Its 26-inch projection and dual rough-in are genuine advantages, but the missing MaP score and lack of WaterSense certification leave flush performance unverified. A budget-friendly option for tight spaces, not a high-performance workhorse.
Check Price on AmazonHow we rank & our data sources
We do not run physical lab tests. Rankings are built from published, verifiable data and real owner feedback, never paid placement.
- MaP (Maximum Performance) flush scores
- EPA WaterSense certification & GPF ratings
- Manufacturer specifications (trapway size, flush-valve, rough-in)
- Verified owner reviews from Amazon, Home Depot & Lowe’s
Researched by BFT Editorial Team · Last updated May 30, 2026 · Our review method
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