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Swiss Madison St. Tropez One-Piece Toilet vs HOROW T0338W One-Piece Compact Toilet: Which Should You Buy?

A web-verified comparison of two dual-flush one-piece toilets, weighing MaP flush scores, water use, footprint and finish options to show which suits your bathroom and budget.

Quick Answer

Both are 1.1/1.6 GPF dual-flush one-piece elongated toilets. The HOROW T0338W wins on flush power and value with a MaP 1000 rating, WaterSense certification and a compact body. The Swiss Madison St. Tropez counters with Vortex cyclonic flushing and more designer finishes.

The Swiss Madison St. Tropez and the HOROW T0338W get cross-shopped constantly, and for good reason. Both are one-piece, dual-flush, elongated toilets that promise a clean modern look without a premium designer price. We compared their manufacturer specifications, retailer listings and owner feedback to see where they actually differ, and the gap comes down to flush rating, footprint and finish choices rather than water numbers. This guide breaks down flush, water use, size and who each toilet fits.

The short version

These two toilets share more than they differ on paper. Both use a 1.1/1.6 GPF dual-flush system, both are one-piece skirted designs with a soft-close seat included, and both sit near ADA comfort height. The decision splits on two verified numbers and one preference. The HOROW T0338W carries a MaP 1000 flush rating and WaterSense certification in a compact body, which makes it the value and clearing-power pick. The Swiss Madison St. Tropez leans on Vortex cyclonic flushing and a much wider palette of colors and hardware finishes, which makes it the styling pick for a design-led bathroom.

Swiss Madison St. Tropez one-piece at a glance

Swiss Madison built the St. Tropez SM-1T254 as a style-forward one-piece elongated toilet. Retailer specs list a 1.1/1.6 GPF Vortex dual flush, a 3-inch trapway, a 12-inch rough-in and an elongated bowl for extra seated room. The overall body measures about 27 inches deep, 15-1/8 inches wide and 31-3/16 inches tall, with a bowl height near 15-3/4 inches before the seat. A soft-close seat is included, and the fully skirted one-piece shell wipes down in a single pass with no exposed trapway to trap grime.

The Vortex flush is the marketing centerpiece. Swiss Madison describes it as a cyclonic rinsing action that swirls water around the bowl to scrub the surface while it clears waste. Manufacturer and canonical spec sheets list a MaP score near 600 grams for the St. Tropez, a mid-pack bulk-clearing result rather than a top-tier one. Where the St. Tropez pulls ahead is choice. It ships in glossy white, glossy grey, matte white and matte black, with white, gold and rose gold push-button hardware, so it can match a specific bathroom scheme. For the wider lineup and where this model sits, see our Swiss Madison brand guide.

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HOROW T0338W one-piece compact at a glance

The HOROW T0338W takes the opposite approach, leading with flush numbers and a small footprint. Manufacturer and Amazon specs list a 1.1/1.6 GPF dual flush paired with a MaP 1000 rating, the maximum result the industry Maximum Performance test records. HOROW also lists the T0338W as WaterSense certified, meaning the dual-flush design meets the EPA water-efficiency and performance standard. The body is genuinely compact at roughly 26.6 inches deep, 15 inches wide and 26 inches tall, which helps in a small bathroom or a tight powder room.

Comfort is built in through an ADA chair height of 17.3 inches, so sitting and standing take less effort. The T0338W uses a power-siphon flush through a fully glazed, fully skirted one-piece shell, includes a soft-close seat, and ships set up for a standard 12-inch rough-in, with a separate 10-inch rough-in version offered for older layouts. HOROW backs it with a limited warranty. Owners frequently praise the quick, powerful flush and the responsive customer support, including help videos for fill-valve adjustment.

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Flush performance: MaP 600 vs MaP 1000

Flush clearing is the clearest divide between these two. The HOROW T0338W holds a MaP 1000 rating, the ceiling of the test, which means it clears roughly 2.2 pounds of solid waste in a single flush. The Swiss Madison St. Tropez lists a MaP score near 600 grams, a competent mid-range result that handles ordinary household use but leaves less margin on heavy loads. Both are dual-flush units, so the reduced setting handles liquid waste on far less water while the full setting does the heavy lifting.

If the MaP number is new to you, it is the single most useful spec on a toilet, and our explainer on what a MaP score is walks through how the test works and why 1000 is the top result. In practice, the HOROW's MaP 1000 rating gives it a real edge in clog resistance, while the St. Tropez counts on its Vortex cyclonic action to keep the bowl clean rather than to set clearing records. For a busy family bathroom, the higher MaP score is the safer bet.

Water use and efficiency

On water, the two toilets are effectively matched. Both use 1.1 gallons on the reduced flush and 1.6 gallons on the full flush, so the daily water story depends on how often each button gets pressed. The important distinction is certification. HOROW lists the T0338W as WaterSense certified, which confirms the design meets the federal efficiency and performance benchmark. Swiss Madison does not clearly publish a WaterSense certification for this St. Tropez configuration, so we treat that status as unconfirmed rather than assume it.

The 1.6-gallon full flush on both units is worth understanding, because it sits at the older federal ceiling rather than the stricter 1.28-gallon single-flush standard. Dual-flush toilets like these average out lower across real use, but if you want to weigh the tradeoffs, our breakdown of 1.28 GPF vs 1.6 GPF explains what each volume means for clearing power and water bills. For buyers who care most about certified efficiency, the HOROW's documented WaterSense status is the tiebreaker.

Size, height and design

Footprint favors the HOROW. At about 26.6 inches deep, the T0338W is a genuinely compact toilet that suits small bathrooms, while the St. Tropez runs closer to 27 inches deep and stands taller overall at roughly 31 inches. Both bring seated comfort near ADA height, the HOROW through a 17.3-inch chair-height rim and the St. Tropez through its comfort-height bowl and seat.

Design is where the St. Tropez earns its keep. It offers glossy and matte finishes across white, grey and black, plus gold and rose gold hardware, so it can headline a styled bathroom rather than blend in. The HOROW keeps things simple with a clean white skirted body aimed at function and value. Both are one-piece designs, which means fewer seams to clean and no tank-to-bowl gasket to fail.

Verified specifications

SpecificationSwiss Madison St. Tropez (SM-1T254)HOROW T0338W
TypeOne-piece, floor-mountOne-piece, floor-mount
Bowl shapeElongatedElongated
Flush volume1.1 / 1.6 GPF dual flush1.1 / 1.6 GPF dual flush
Flush systemVortex cyclonic dual flushPower siphon dual flush
MaP scoreAbout 600 g1000 g
WaterSenseNot clearly publishedYes
Seat heightComfort height, seat includedADA chair height 17.3 in
Trapway3 inchFully glazed, skirted (size not published)
Rough-in12 inch12 inch (10 inch version offered)
Approx. footprint27 in D, 15-1/8 in W, 31-3/16 in H26.6 in D, 15 in W, 26 in H
FinishesGlossy/matte white, grey, black; gold and rose gold hardwareWhite
SeatSoft-close, includedSoft-close, included

How they compare to the wider market

Both toilets are budget-to-mid picks, so it helps to place them against the toilets that define the top of the flush charts. The HOROW T0338W joins the MaP 1000 club, the same clearing ceiling reached by the TOTO Drake, the TOTO Drake II with Tornado Flush, the Kohler Cimarron and the Kohler Highline with Class Five, which is impressive at its price. The Swiss Madison St. Tropez, at a listed MaP near 600, trails those clearing scores but competes on styling and its cyclonic Vortex rinse. Both are dual-flush, so buyers who want a simpler 1.28-gallon single-flush layout should look at those premium models. You can see the full field in our roundup of the best flushing toilets. In short, the HOROW delivers premium-tier clearing power in a value package, while the St. Tropez trades some flush rating for the widest set of design options in this pair.

Pros and cons

Swiss Madison St. Tropez

  • Pro: Widest finish range in this pair, with glossy and matte colors plus gold and rose gold hardware.
  • Pro: Vortex cyclonic flush scrubs the bowl on every cycle for a cleaner surface.
  • Pro: One-piece skirted shell with an included soft-close seat wipes down easily.
  • Pro: 3-inch trapway and elongated bowl on a standard 12-inch rough-in.
  • Con: Listed MaP near 600 trails the HOROW's top clearing score.
  • Con: WaterSense certification is not clearly published for this configuration.
  • Con: Larger, taller body needs more room than the compact HOROW.

HOROW T0338W

  • Pro: MaP 1000 rating, the maximum clearing score, for strong clog resistance.
  • Pro: WaterSense certified dual flush at 1.1/1.6 GPF.
  • Pro: Genuinely compact at about 26.6 inches deep for small bathrooms.
  • Pro: ADA chair height 17.3 inches, soft-close seat included, 10-inch rough-in option offered.
  • Con: Sold in white only, with no designer finish choices.
  • Con: Trapway size is not published by the manufacturer.
  • Con: Warranty coverage is shorter than the lifetime chinaware terms common on premium brands.

Who should buy which

Buy the HOROW T0338W if flush power, water certification and a small footprint top your list. Its MaP 1000 rating and WaterSense status make it the smarter pick for a busy family bathroom, a rental or any room where clog resistance and a compact body matter more than color choices. The ADA chair height and optional 10-inch rough-in add flexibility, and the value is hard to match at this clearing score.

Buy the Swiss Madison St. Tropez if styling drives the decision. When you want a specific finish, a matte black or a gold-hardware look to headline a designed bathroom, the St. Tropez delivers options the HOROW does not, and its Vortex cyclonic flush keeps the bowl clean for typical household use. Just accept the mid-range MaP score and the unconfirmed WaterSense status as the tradeoff for that broader design range. For most shoppers weighing pure performance and price, the HOROW takes this matchup, while the St. Tropez wins on looks.

Frequently asked questions

? Which toilet flushes better, the St. Tropez or the T0338W?

On the numbers, the HOROW T0338W flushes better. It holds a MaP 1000 rating, the top clearing score, while the Swiss Madison St. Tropez lists a MaP near 600. Both are dual-flush units, but the HOROW clears more solid waste per flush.

? Do both toilets use the same amount of water?

Yes. Both use a 1.1/1.6 GPF dual-flush system, so they draw the same volume per flush. The difference is certification, since HOROW lists the T0338W as WaterSense certified while Swiss Madison does not clearly publish that status for this St. Tropez configuration.

? Which is better for a small bathroom?

The HOROW T0338W. Its compact body runs about 26.6 inches deep, shorter than the roughly 27-inch-deep and taller St. Tropez, so it fits tighter spaces more easily. HOROW also offers a 10-inch rough-in version for older layouts.

? Does the Swiss Madison St. Tropez come in colors?

Yes. The St. Tropez is offered in glossy and matte finishes across white, grey and black, with white, gold and rose gold push-button hardware. The HOROW T0338W is sold in white only.

? Are both toilets easy to install?

Both are one-piece designs set up for a standard 12-inch rough-in, and each includes a soft-close seat. The one-piece shell removes the tank-to-bowl gasket, which simplifies installation.

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Researched by BFT Editorial Team

The Best Flushing Toilets editorial team researches MaP flush scores, water efficiency data, and owner feedback to help you find the right toilet.

Updated August 2026 · Comparisons
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