Looking to slash your water bill while helping the environment? You’ve come to the right place! Low flow toilets are game-changers that can save thousands of gallons of water annually without sacrificing performance. Whether you’re renovating your bathroom or simply want to upgrade to a more eco-friendly option, this comprehensive guide will help you find the perfect water-saving toilet for your home.
Low flow toilets use significantly less water per flush compared to older models – typically 1.28 gallons or less versus the 3.5-7 gallons used by traditional toilets. That’s a massive difference that adds up quickly on your utility bills!
Quick Links for 10 Low Flow Toilets
TOTO Drake II Two-Piece Elongated Toilet
Kohler Santa Rosa Comfort Height One-Piece Toilet
American Standard Champion 4 Right Height Elongated Toilet
Niagara Stealth Ultra-High-Efficiency Toilet
Woodbridge T-0019 One-Piece Dual-Flush Toilet
Swiss Madison Sublime One-Piece Elongated Toilet
Deer Valley Modern One-Piece Elongated Toilet
Glacier Bay All-in-One Single Flush Elongated Toilet
HOROW Small Dual Flush One-Piece Toilet
Comparison Table: Low Flow Toilet Features
| Model | Water Usage (GPF) | Bowl Shape | Height | Flush Type | Installation |
|---|---|---|---|---|---|
| TOTO Drake II | 1.28 | Elongated | Universal | Tornado Flush | Two-piece |
| Kohler Santa Rosa | 1.28 | Compact Elongated | Comfort | AquaPiston | One-piece |
| American Standard Champion 4 | 1.28 | Elongated | Right Height | 4″ Valve | Two-piece |
| Niagara Stealth | 0.8 | Elongated | Standard | Air-Assisted | Two-piece |
| Woodbridge T-0019 | 1.0/1.6 Dual | Elongated | Comfort | Dual-Flush | One-piece |
| Swiss Madison Sublime | 1.28 | Elongated | Comfort | Cyclone | One-piece |
| DeerValley Modern | 1.28 | Elongated | Comfort | Siphon Jet | One-piece |
| Glacier Bay All-in-One | 1.28 | Elongated | Standard | PowerFlush | Two-piece |
| HOROW Small | 0.8/1.28 Dual | Compact Elongated | Comfort | Hydraulic | One-piece |
| Signature Hardware Bradenton | 1.28 | Elongated | Standard | Gravity-Fed | Two-piece |
Our Top 10 Best Low Flow Toilets for 2025
We’ve tested and researched dozens of models to bring you this definitive list of the best low flow toilets available today. Each toilet has been evaluated based on flushing performance, water efficiency, build quality, and overall value.
1. TOTO Drake II Two-Piece Elongated Toilet
The TOTO Drake II stands as the gold standard in low flow toilet technology, combining exceptional performance with unmatched reliability. This powerhouse uses TOTO’s innovative Tornado Flush system that creates a centrifugal washing action, ensuring every corner of the bowl gets thoroughly cleaned with just 1.28 gallons per flush. The elongated design provides superior comfort, while the universal height makes it accessible for users of all ages and mobility levels.
What sets the Drake II apart is its consistent, powerful flush that rarely requires a second attempt. The glazed trapway prevents clogs and makes cleaning effortless, while the SoftClose seat eliminates those annoying middle-of-the-night slams. Installation is straightforward with standard 12-inch rough-in compatibility, and the classic white finish matches virtually any bathroom decor.
The dual-flush capability gives you options – use less water for liquid waste and full power when needed. This smart design maximizes water savings without compromising performance. TOTO’s reputation for durability means this toilet will serve your family reliably for decades.
Pros:
- Exceptional flushing power with minimal water usage
- Tornado Flush technology for superior bowl cleaning
- Universal height for enhanced comfort and accessibility
- Durable glazed trapway resists clogs and stains
- SoftClose seat included
- Dual-flush option for maximum water savings
Con: Premium pricing compared to basic models
2. Kohler Santa Rosa Comfort Height One-Piece Toilet
The Kohler Santa Rosa revolutionizes bathroom design with its sleek one-piece construction and compact footprint, perfect for smaller spaces without sacrificing performance. This elegantly designed toilet features Kohler’s AquaPiston flush engine that delivers a fast, powerful, and virtually plug-free flush using only 1.28 gallons. The comfort height design sits at the ideal height for most users, reducing strain on knees and back.
Its one-piece design isn’t just aesthetically pleasing – it’s also incredibly practical. With fewer crevices and joints, cleaning becomes a breeze, and there are fewer places for bacteria and odors to hide. The compact elongated bowl provides the comfort of a full-size toilet while fitting into tighter spaces, making it ideal for guest bathrooms or powder rooms.
The Santa Rosa’s chair-height seating and elongated bowl create a more natural and comfortable sitting position. The included toilet seat features Quick-Release hinges for easy removal and thorough cleaning. Kohler’s attention to detail shows in every aspect, from the smooth, easy-to-clean surfaces to the reliable internal components.
Pros:
- Space-saving one-piece design perfect for small bathrooms
- Powerful AquaPiston flush technology
- Comfort height reduces strain on knees and back
- Easy-to-clean smooth surfaces with minimal crevices
- Quick-Release toilet seat for thorough cleaning
- Compact elongated bowl maximizes comfort in tight spaces
Con: Higher upfront cost than two-piece alternatives
3. American Standard Champion 4 Right Height Elongated Toilet
The American Standard Champion 4 lives up to its name by delivering championship-level performance in waste removal while maintaining excellent water efficiency at 1.28 gallons per flush. This toilet features the largest flush valve in the industry at 4 inches, creating an incredibly powerful siphon that can handle even the most challenging waste with ease. The Right Height design provides comfortable seating that’s perfect for most adults.
What makes the Champion 4 truly special is its ability to flush a bucket of golf balls in testing – that’s serious flushing power! The extra-large 2⅜-inch trapway ensures waste moves efficiently through the system without clogs. The EverClean surface stays cleaner longer by inhibiting the growth of stain and odor-causing bacteria, mold, and mildew.
The elongated bowl provides additional comfort, while the standard height makes it compatible with existing bathroom setups. Installation is straightforward with the included hardware and clear instructions. American Standard’s reputation for reliability means you can count on consistent performance year after year.
Pros:
- Incredibly powerful 4-inch flush valve system
- Largest trapway in the industry prevents clogs
- EverClean surface inhibits bacteria and stain buildup
- Right Height design for comfortable seating
- Proven ability to flush challenging waste
- Reliable American Standard quality and warranty
Con: May be too powerful for some users’ preferences
4. Niagara Stealth Ultra-High-Efficiency Toilet
The Niagara Stealth breaks new ground in water conservation by using only 0.8 gallons per flush – nearly 40% less water than standard low flow toilets. Despite this ultra-low water usage, the Stealth delivers impressive flushing performance through its innovative air-assisted siphon technology. This unique system uses air pressure to boost the flush power, ensuring complete waste removal with minimal water.
The patented Stealth technology operates virtually silently, making it perfect for master bathrooms or homes where noise is a concern. The elongated bowl design provides comfort, while the standard height fits most bathroom configurations. The sleek, modern appearance complements contemporary bathroom designs, and the easy-to-clean surfaces make maintenance simple.
What’s remarkable about the Stealth is how it achieves such powerful performance with so little water. The air-assist technology creates a vacuum effect that pulls waste through efficiently, while the specially designed trapway ensures smooth operation. For environmentally conscious homeowners, this toilet represents the cutting edge of water conservation technology.
Pros:
- Ultra-low 0.8 gallons per flush saves maximum water
- Innovative air-assisted flush technology
- Virtually silent operation
- Elongated bowl for enhanced comfort
- Modern, sleek design
- Maximum environmental benefit with proven performance
Con: Requires specific installation considerations for optimal performance
5. Woodbridge T-0019 One-Piece Dual-Flush Toilet
The Woodbridge T-0019 offers luxury features at an accessible price point, making high-end toilet technology available to more homeowners. This sophisticated one-piece toilet features a dual-flush system with 1.0 GPF for liquids and 1.6 GPF for solids, giving you complete control over water usage. The soft-closing seat adds a touch of luxury while preventing damage from slamming.
The modern, streamlined design creates a spa-like atmosphere in any bathroom, while the comfort height seating reduces strain on joints. The powerful siphon flush system ensures reliable waste removal, and the fully glazed trapway prevents buildup and makes cleaning effortless. The quick-connect installation system simplifies setup for both professionals and DIY enthusiasts.
Quality construction is evident throughout, from the solid ceramic body to the precision-engineered internal components. The toilet meets all WaterSense and EPA standards, ensuring both performance and efficiency. Woodbridge includes everything needed for installation, making this toilet an excellent value for homeowners seeking luxury features without the premium price tag.
Pros:
- Dual-flush system maximizes water savings flexibility
- Luxury soft-closing seat included
- One-piece design for easy cleaning and modern appearance
- Comfort height reduces strain on knees and back
- Quick-connect installation system
- Excellent value with premium features
Con: May require professional installation for optimal results
6. Swiss Madison Sublime One-Piece Elongated Toilet
The Swiss Madison Sublime combines European design sensibilities with practical American functionality, creating a toilet that’s both beautiful and highly efficient. Using 1.28 gallons per flush, this elegant toilet features a powerful cyclone flush system that creates a thorough, swirling action to clean the entire bowl surface. The one-piece construction eliminates gaps and crevices where dirt and bacteria can accumulate.
The comfort height design accommodates users of various heights and mobility levels, while the elongated bowl provides enhanced comfort during use. The smooth, non-porous surface resists stains and odors, maintaining its pristine appearance with minimal maintenance. The included soft-close seat operates smoothly and quietly, adding a touch of sophistication to your bathroom experience.
Installation is simplified with the pre-installed flush mechanism and comprehensive instructions. The modern, minimalist design complements contemporary bathroom styles, while the reliable performance ensures long-term satisfaction. Swiss Madison’s attention to detail is evident in every aspect, from the precision-molded ceramics to the high-quality internal components.
Pros:
- Elegant European-inspired design
- Powerful cyclone flush system for thorough cleaning
- One-piece construction eliminates cleaning challenges
- Comfort height accommodates various users
- Soft-close seat included for quiet operation
- Stain and odor-resistant surfaces
Con: Limited color options available
7. DeerValley Modern One-Piece Elongated Toilet
The DeerValley Modern toilet represents the perfect fusion of contemporary style and practical functionality, featuring a sleek skirted design that conceals all plumbing connections for a clean, seamless appearance. This innovative toilet uses 1.28 gallons per flush through its advanced siphon jet flush system, which creates powerful water flow patterns that effectively clean the bowl while conserving water.
The comfort height design provides an ideal seating position that reduces strain on legs and back, making it particularly beneficial for seniors and individuals with mobility challenges. The elongated bowl offers enhanced comfort compared to round designs, while the soft-close seat operates quietly and prevents damage from accidental drops. The fully skirted trapway not only looks elegant but also makes floor cleaning much easier.
Quality construction is evident in every detail, from the precision-glazed ceramic surface to the robust internal flushing mechanism. The toilet’s modern aesthetic works beautifully in contemporary bathrooms, while its reliable performance ensures years of trouble-free operation. DeerValley includes all necessary installation hardware and provides clear, step-by-step instructions.
Pros:
- Sleek skirted design conceals plumbing for clean appearance
- Advanced siphon jet flush system for powerful performance
- Comfort height design reduces physical strain
- Elongated bowl enhances user comfort
- Soft-close seat prevents noise and damage
- Easy floor cleaning around skirted base
Con: Skirted design may complicate some repairs
8. Glacier Bay All-in-One Single Flush Elongated Toilet
The Glacier Bay All-in-One toilet delivers exceptional value by including everything needed for a complete toilet upgrade in one convenient package. This practical toilet uses 1.28 gallons per flush through its efficient gravity-fed system, providing reliable performance while meeting all current water conservation standards. The elongated bowl design offers enhanced comfort, while the standard height fits most existing bathroom configurations.
What makes this toilet particularly appealing to homeowners is the complete package approach – it includes the toilet, seat, wax ring, bolts, and installation hardware. This eliminates multiple shopping trips and ensures all components work together perfectly. The PowerFlush technology creates strong siphon action that effectively removes waste while using minimal water.
The durable vitreous china construction resists chips, cracks, and stains, ensuring long-lasting beauty and performance. The smooth surfaces make cleaning quick and easy, while the reliable flush mechanism provides consistent performance. For budget-conscious homeowners who don’t want to compromise on quality, this toilet offers an excellent balance of features and affordability.
Pros:
- Complete all-in-one package includes everything needed
- PowerFlush technology for reliable waste removal
- Elongated bowl provides enhanced comfort
- Durable vitreous china construction
- Smooth surfaces for easy cleaning
- Excellent value for budget-conscious buyers
Con: Basic features compared to premium models
9. HOROW Small Dual Flush One-Piece Toilet
The HOROW Small toilet proves that compact size doesn’t mean compromising on performance or comfort. Specifically designed for smaller bathrooms, this space-saving toilet measures just 25 inches in length while still providing the comfort of an elongated bowl. The dual-flush system offers 0.8 GPF for liquids and 1.28 GPF for solids, maximizing water savings while ensuring effective waste removal.
The one-piece construction creates a sleek, modern appearance while eliminating the gaps and joints where bacteria and odors can hide. The comfort height seating provides an ideal position for most users, reducing strain on knees and back during use. The powerful flush system uses innovative hydraulic technology to create strong water flow that effectively cleans the bowl with minimal water usage.
Installation is straightforward thanks to the pre-installed components and comprehensive instructions. The soft-close seat operates quietly and smoothly, adding a touch of luxury to the compact design. For apartments, condos, or any bathroom where space is at a premium, this toilet delivers full-size performance in a space-efficient package.
Pros:
- Compact design perfect for small bathrooms
- Dual-flush system for maximum water savings
- One-piece construction for easy cleaning
- Comfort height reduces strain on joints
- Powerful hydraulic flush technology
- Space-efficient without sacrificing comfort
Con: Smaller size may not suit all users’ preferences
10. Signature Hardware Bradenton Two-Piece Elongated Toilet
The Signature Hardware Bradenton toilet combines classic styling with modern efficiency, creating a versatile option that works beautifully in both traditional and contemporary bathrooms. This reliable toilet uses 1.28 gallons per flush through its efficient gravity-fed system, providing consistent performance while meeting all current water conservation requirements. The two-piece design offers easier installation and maintenance compared to one-piece models.
The elongated bowl provides enhanced comfort during use, while the standard height ensures compatibility with existing bathroom setups. The powerful flush system creates strong siphon action that effectively removes waste without requiring multiple flushes. The smooth, glazed surfaces resist stains and odors, making cleaning and maintenance simple and straightforward.
Quality construction is evident throughout, from the durable vitreous china body to the precision-engineered internal components. The toilet’s timeless design ensures it won’t look outdated in years to come, while the reliable performance provides long-term value. Signature Hardware includes all necessary mounting hardware and provides comprehensive installation instructions for both professional installers and DIY enthusiasts.
Pros:
- Classic design works with various bathroom styles
- Reliable gravity-fed flush system
- Two-piece design simplifies installation and repairs
- Elongated bowl enhances user comfort
- Durable vitreous china construction
- Timeless styling that won’t become outdated
Con: Two-piece design creates more cleaning surfaces
The Complete Low Flow Toilet Buying Guide 🛠️
Choosing the right low flow toilet doesn’t have to be overwhelming! This comprehensive guide will walk you through everything you need to know to make an informed decision that you’ll be happy with for years to come.
Understanding Water Efficiency Standards
What Does GPF Mean?
GPF stands for “Gallons Per Flush” – this number tells you exactly how much water your toilet uses with each flush. Current federal standards require all new toilets to use 1.6 GPF or less, but many modern low flow toilets use even less water.
WaterSense Certification
Look for the EPA WaterSense label, which indicates the toilet uses 1.28 GPF or less while meeting strict performance standards. WaterSense toilets can save the average family more than $90 annually on water bills and $2,000 over the toilet’s lifetime.
Flush Performance Factors
Flush Power vs. Water Usage
Don’t assume that less water means weaker performance! Modern low flow toilets use advanced engineering to maximize flush power while minimizing water usage. Key technologies include:
- Pressure-assisted systems that use compressed air for extra power
- Dual-flush options that let you choose water usage based on waste type
- Advanced trapway designs that improve flow dynamics
- Larger flush valves that move more water faster
Testing and Certification
Look for toilets that have been tested by independent organizations like the Maximum Performance (MaP) testing program, which measures how much waste a toilet can remove in a single flush.
Size and Comfort Considerations
Bowl Shape Options
- Round bowls save space and cost less but may be less comfortable
- Elongated bowls provide more comfort and are preferred by most users
- Compact elongated offers comfort in a space-saving design
Height Matters
- Standard height (15 inches) works for most situations
- Comfort/Chair height (17-19 inches) reduces strain on knees and back
- Universal height accommodates users with mobility challenges
Installation Requirements
Rough-In Measurements
Most toilets require a 12-inch rough-in (distance from wall to center of drain), but some homes have 10-inch or 14-inch configurations. Measure carefully before purchasing!
Professional vs. DIY Installation
While many homeowners can install a toilet themselves, consider professional installation if you’re:
- Replacing old plumbing
- Installing a wall-hung toilet
- Dealing with non-standard rough-in measurements
- Uncomfortable working with plumbing connections
One-Piece vs. Two-Piece Design
One-Piece Advantages:
- Sleeker appearance with no gaps
- Easier to clean with fewer crevices
- More compact profile
- Often quieter operation
Two-Piece Advantages:
- Lower upfront cost
- Easier to transport and install
- Simpler repairs and maintenance
- More style and height options
Special Features to Consider
Dual-Flush Technology
Dual-flush toilets offer two flush options – typically 0.8-1.0 GPF for liquids and 1.28-1.6 GPF for solids. This can increase water savings by 20-30% compared to single-flush models.
Soft-Close Seats
These seats close slowly and quietly, preventing noise and protecting both the seat and toilet from damage. Many also feature quick-release hinges for easy cleaning.
Antimicrobial Surfaces
Some manufacturers offer special glazes or surface treatments that inhibit bacterial growth, making toilets easier to clean and more hygienic.
Budget Planning
Initial Investment
Low flow toilets range from budget-friendly options under $200 to luxury models over $1,000. Consider your bathroom’s style, your performance needs, and your long-term plans when setting a budget.
Long-Term Savings
Factor in water savings when calculating total cost. A toilet that costs $100 more upfront but saves 5,000 gallons annually can pay for itself quickly, especially in areas with high water rates.
Installation Costs
Professional installation typically costs $150-$300, depending on complexity. DIY installation can save money but requires proper tools and plumbing knowledge.
Water Conservation Benefits 💧
Environmental Impact
Toilets account for nearly 30% of residential indoor water use. Upgrading from an older toilet (3.5+ GPF) to a modern low flow model can save:
- 13,000+ gallons per person annually
- Reduce strain on water treatment facilities
- Lower your household’s environmental footprint
Financial Benefits
The average family can save:
- $90+ annually on water bills with WaterSense toilets
- $2,000+ over the toilet’s 20+ year lifespan
- Additional savings in areas with tiered water pricing
- Potential rebates from local water utilities
Maintenance and Longevity Tips 🔧
Regular Maintenance
Keep your low flow toilet performing optimally with these simple practices:
- Clean the rim holes monthly to prevent mineral buildup
- Check and adjust the flapper chain if flushing becomes weak
- Replace the flapper every 3-5 years to prevent leaks
- Use toilet-specific cleaners to protect internal components
Troubleshooting Common Issues
Weak Flush:
- Check for mineral buildup in rim holes
- Ensure proper water level in tank
- Verify flapper is sealing completely
Running Water:
- Adjust flapper chain length
- Replace worn flapper seal
- Check float adjustment
Clogs:
- Use appropriate plunger technique
- Avoid flushing inappropriate items
- Consider enzyme-based cleaners for prevention
Making Your Final Decision
Prioritize Your Needs
Consider these key factors when making your choice:
- Water savings goals – How important is maximum conservation?
- Bathroom size – Do you need a compact or full-size model?
- User comfort – Who will be using the toilet most frequently?
- Style preferences – Does it need to match existing fixtures?
- Budget constraints – What’s your total investment including installation?
Read Reviews and Ratings
Look for toilets with:
- High MaP test scores (300+ grams)
- Positive long-term user reviews
- Good warranty coverage
- Available replacement parts
Consider Future Needs
Think about how your needs might change:
- Aging in place considerations
- Growing family requirements
- Potential bathroom renovations
- Resale value impact
Conclusion: Finding Your Perfect Low Flow Toilet
Choosing the right low flow toilet is an investment in both your home and the environment. Whether you prioritize maximum water savings with the ultra-efficient Niagara Stealth, prefer the luxury features of the Woodbridge T-0019, or need the space-saving design of the HOROW Small, there’s a perfect option for every bathroom and budget.
Remember that the best toilet for you depends on your specific needs, bathroom size, and personal preferences. Consider the water savings, comfort features, and long-term reliability when making your decision. With proper selection and installation, your new low flow toilet will provide years of reliable service while significantly reducing your water usage and utility bills.
Ready to Make the Switch?
Take measurements of your current setup, consider your priorities from our buying guide, and choose the toilet that best matches your needs. Your wallet and the environment will thank you for making the switch to an efficient, modern low flow toilet!
Pro Tip: Many local water utilities offer rebates for WaterSense certified toilets – check with your provider before purchasing to maximize your savings! 💡
Need More Help?
If you have specific questions about installation, compatibility, or choosing between models, don’t hesitate to consult with a plumbing professional or contact the manufacturer’s customer service team for personalized guidance.
