TOTO Toilet Serial Number: How to Find Your Model Year
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Step-by-step guide to locating your TOTO serial number, decoding the production date, confirming your model, and using that information for warranty claims,…
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Best Toilet Brands Ranked 2026
We rank the top toilet brands for 2026 based on MaP flush scores, water efficiency, owner satisfaction, and warranty coverage. Find the right brand for your bathroom and budget.
Why Trust Best Flushing Toilets
- Flushing power and MaP flush-test scores
- Water efficiency (GPF and EPA WaterSense)
- Aggregated owner reviews
- Clog resistance and trapway design
- Brand reliability and warranty
Research updated June 2026.
Quick Answer
TOTO leads the 2026 rankings with the highest MaP scores and longest warranty, followed closely by Kohler for design variety and American Standard for budget-friendly reliability. Gerber and Woodbridge offer strong value picks, while Swiss Madison is the best entry-level brand. Choose TOTO for maximum clog resistance, Kohler for style, and American Standard for proven durability.
| Brand | Best Model | MaP Score | GPF | Flush Type | Trapway | Height | Best For | Check Price |
|---|---|---|---|---|---|---|---|---|
| TOTO | Drake II | 1000g | 1.28 | G-Max | 2-1/8" | 17-1/8" | Maximum clog resistance | Check price |
| Kohler | Highline | 1000g | 1.28 | Class Five | 2-1/8" | 17" | Design and style | Check price |
| American Standard | Champion 4 | 1000g | 1.28 | PowerWash | 2-3/8" | 16-1/2" | Budget-friendly reliability | Check price |
| Gerber | Viper | 1000g | 1.28 | Piston | 2-1/8" | 17" | Value performance | Check price |
| Woodbridge | T-0001 | 1000g | 1.28 | Dual flush | 2-1/8" | 16.5" | Modern features | Check price |
| Swiss Madison | St. Tropez | 800g | 1.28 | Dual flush | 2" | 16.5" | Entry-level price | Check price |
Which toilet brand has the best flushing performance?
TOTO consistently achieves the highest MaP flush scores across its lineup, with the Drake II and UltraMax II models scoring 1000 grams. Kohler and American Standard also offer 1000-gram models, but TOTO's G-Max flush system and larger trapway provide superior clog resistance in real-world use.
When evaluating flushing performance, the MaP (Maximum Performance) score is the most reliable metric. It measures how many grams of waste a toilet can clear in a single flush. TOTO's Drake II, Kohler's Highline, and American Standard's Champion 4 all achieve the top score of 1000 grams. However, TOTO's trapway diameter (2-1/8 inches) and G-Max flush system give it an edge in preventing clogs. Owner reviews on major retail sites consistently rate TOTO models as "never clog" more often than other brands.
Recommended toilets in this guide
Kohler's Class Five flush technology uses a larger water surface and a direct-fed jet to clear the bowl quickly. It is very effective, but some owners report occasional double-flushing with the Highline model. American Standard's PowerWash rim cleans the bowl with every flush, but the Champion 4 can be louder than TOTO's quiet G-Max. For pure flushing power, TOTO remains the benchmark.
Expert Take
MaP scores are standardized, but real-world performance depends on trapway design and water surface area. TOTO's 2-1/8 inch fully glazed trapway reduces friction, which is why it clogs less often than brands with smaller or partially glazed passages. Always check the trapway diameter in the spec sheet.
What is the most reliable toilet brand for long-term use?
TOTO and Kohler tie for long-term reliability, with TOTO offering a limited lifetime warranty on china and Kohler providing a one-year limited warranty on parts. American Standard is a close third, with a strong reputation for durability at a lower price point.
Reliability goes beyond the flush mechanism. It includes the quality of the china, the durability of the flush valve, and the warranty coverage. TOTO uses high-fired vitreous china that resists cracking and staining. Their flush valves are designed to last 10-15 years with minimal maintenance. Kohler uses similar materials and offers a wide range of replacement parts, which is important for long-term ownership.
American Standard's Champion 4 has been on the market for over a decade with few design changes, which speaks to its reliability. Gerber and Woodbridge are newer to the residential market but use commercial-grade components. Swiss Madison has a shorter track record, so long-term reliability is less proven. For peace of mind, TOTO and Kohler are the safest bets.
Expert Take
Warranty length is a good proxy for reliability. TOTO's limited lifetime warranty on china is the best in the industry. Kohler and American Standard offer one-year warranties on parts, but their china is also covered for longer periods in some cases. Always read the fine print on what is covered.
Which toilet brand offers the best value for the price?
American Standard and Gerber offer the best value, with models like the Champion 4 and Viper delivering 1000-gram MaP scores at prices 30-40% lower than TOTO. Woodbridge is the best value for modern features like soft-close seats and dual flush.
Value is defined by performance per dollar. American Standard's Champion 4 typically sells for $200-$250 and offers a 1000-gram MaP score, a 2-3/8 inch trapway (the largest in this comparison), and a PowerWash rim. Gerber's Viper is often priced under $200 and provides the same 1000-gram performance with a piston flush action that is very reliable.
Woodbridge's T-0001 and T-0019 models include soft-close seats, dual flush, and a sleek modern design for around $250-$300. Swiss Madison's St. Tropez is the cheapest option, often under $150, but its MaP score is 800 grams, which is lower than the top performers. For the best balance of price and performance, American Standard and Gerber are the clear winners.
Expert Take
Do not assume a higher price means better performance. American Standard's Champion 4 has the largest trapway of any residential toilet, which directly improves clog resistance. It is a smart buy for budget-conscious homeowners who still want top-tier flushing power.
How do I choose between TOTO and Kohler toilets?
Choose TOTO if your top priority is flushing power and clog resistance. Choose Kohler if you want more design options, a wider range of bowl shapes, and easier availability of replacement parts. Both brands are excellent, but they serve slightly different needs.
TOTO focuses on engineering and performance. Their Drake II and UltraMax II models are nearly identical in function, with the UltraMax II adding a skirted design for easier cleaning. TOTO's flush systems are quieter and more efficient than most competitors. However, TOTO models can be harder to find in stock and replacement parts are less common at big-box stores.
Kohler offers more variety in terms of style, color, and height. The Highline and Cimarron are popular models that are widely available at Home Depot and Lowe's. Kohler's Class Five flush is very effective, though slightly louder than TOTO's G-Max. Kohler also has a larger selection of one-piece and two-piece designs. If design flexibility matters more than absolute flushing power, Kohler is the better choice.
Expert Take
For most homeowners, the difference between TOTO and Kohler is marginal. Both will last 20+ years with proper maintenance. The real decision comes down to availability and price. If you can find a TOTO Drake II for under $300, buy it. Otherwise, a Kohler Highline at $250 is an excellent alternative.
Are dual flush toilets from brands like Woodbridge and Swiss Madison worth it?
Yes, dual flush toilets from Woodbridge and Swiss Madison are worth it for water savings, but they typically have slightly lower MaP scores than single-flush models. Woodbridge's T-0001 scores 1000 grams on the full flush, while Swiss Madison's St. Tropez scores 800 grams.
Dual flush toilets offer a 0.8 or 0.9 GPF option for liquid waste and a 1.28 GPF option for solid waste. This can save up to 20% more water than a standard 1.28 GPF toilet. Woodbridge's T-0001 uses a dual flush system that achieves a 1000-gram MaP score on the full flush, which is excellent for a dual flush model. The T-0019 is similar but with a different design.
Swiss Madison's St. Tropez is more budget-friendly, but its 800-gram MaP score is lower. Some owners report needing to flush twice on the full flush setting. For maximum water savings without sacrificing performance, Woodbridge is the better choice. Swiss Madison is a good option for a guest bathroom or low-traffic area where occasional double-flushing is acceptable.
Expert Take
Dual flush toilets are most effective when users actually use the half-flush button. Many homeowners forget to use it, negating the water savings. If you are disciplined about using the half-flush, a Woodbridge T-0001 will save you money on your water bill. If not, a standard 1.28 GPF single-flush model is simpler and equally efficient.
Frequently Asked Questions
What is the best toilet brand overall in 2026?
TOTO is the best overall toilet brand in 2026 due to its highest MaP scores, quiet flush, and long warranty.
Is Kohler better than TOTO?
Kohler offers more design variety and easier parts availability, but TOTO has superior flushing performance and clog resistance.
What is the most reliable toilet brand?
TOTO and Kohler are the most reliable, with TOTO offering a limited lifetime warranty on china and Kohler having a strong parts network.
Which toilet brand has the best flush?
TOTO's G-Max flush system and 2-1/8 inch trapway provide the best flush performance, scoring 1000 grams on MaP tests.
Are American Standard toilets good?
Yes, American Standard toilets like the Champion 4 offer excellent value with a 1000-gram MaP score and the largest trapway in the industry.
What is the best budget toilet brand?
Gerber and Swiss Madison are the best budget brands, with Gerber offering 1000-gram performance under $200 and Swiss Madison offering entry-level prices.
Do Woodbridge toilets flush well?
Yes, Woodbridge toilets like the T-0001 achieve a 1000-gram MaP score on the full flush, making them among the best dual flush models.
What is a MaP score?
MaP (Maximum Performance) score measures how many grams of waste a toilet can clear in a single flush. A score of 1000 grams is the highest possible.
What does GPF mean?
GPF stands for gallons per flush. Most modern toilets use 1.28 GPF, which is EPA WaterSense certified for water efficiency.
What is the best toilet for clogging?
TOTO's Drake II and American Standard's Champion 4 are the best for preventing clogs due to their large trapways and powerful flush systems.
Are Swiss Madison toilets reliable?
Swiss Madison toilets are reliable for the price, but their 800-gram MaP score is lower than top brands and long-term durability is less proven.
What is the best toilet brand for a small bathroom?
Kohler's Wellworth and TOTO's Aquia IV are good choices for small bathrooms due to their compact designs and efficient flushing.
Which toilet brand has the longest warranty?
TOTO offers a limited lifetime warranty on china, which is the longest in the industry. Kohler and American Standard offer one-year warranties on parts.
Can I replace a Kohler toilet with a TOTO?
Yes, but you may need to adjust the rough-in distance. Most TOTO toilets fit a 12-inch rough-in, which is standard in US homes.
Sources
- EPA WaterSense, epa.gov/watersense
- MaP flush testing, map-testing.com
- Manufacturer published specifications
- Owner reviews aggregated from Home Depot, Lowe's, and Amazon
- Consumer Reports toilet ratings
Our Verdict
For 2026, TOTO remains the best toilet brand for flushing performance and reliability, with Kohler as the top alternative for design and availability. American Standard and Gerber offer the best value for budget-conscious buyers, while Woodbridge is the best choice for modern dual flush features. Swiss Madison is a viable entry-level option. Choose based on your priority: maximum performance (TOTO), style (Kohler), or value (American Standard).
How 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 Marcus Bell · Last updated June 28, 2026 · Our review method
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