Best Low Flow Toilet – Reviews, Top 3 Picks of 2021 and Buyer’s Guide

by Dan | Last Updated: January 18, 2021

Our editors independently research, select and recommend the best products. Some of these may be affiliate based, meaning we earn a small commission (at no additional cost to you) if items are purchased.

Toilets are known to be, by far, the thirstiest household fixtures. According to the Environmental Protection Agency, these fixtures account for over 30% of most homes’ water bills.

Today, most States have put in place stringent regulations that require the average toilet to use utmost 1.6 GPF. The EPA, on the other hand, encourages the toilet manufacturers to redesign their toilets to cut this rate by 20% to use utmost 1.28 GPF.

Surprisingly, some toilet giants including Niagara and Toto have taken the bar even higher to offer toilets that surpass these rates to use under 1 gallon per flush!

If you are hell-bent on slashing your water bills, I bet this is the way to go. And we are here to bring you some of the best models in this regard.

Top 3 Low Flow Toilets

Best Overall
Niagara 77002WHCO1
  • Niagara 77002WHCO1 Stealth
  • Our Rating: 9/10
  •  Water Consumption & Flush:
    0.8 GPF
    Pressure Assist Flush
  •  Dimensions:
    27x18.8x30"
  •   Features:
    Ultra-High-Efficiency Flush, Extremely Quiet Flush
  • Price: 
Premium
Environflush Dual Flush Toilet
  • Environflush Dual Flush Toilet
  • Our Rating: 8/10
  •  Water Consumption & Flush:
    0.8 GPF
    Jet Syphon Flush
  •  Dimensions:
    Check With The Manufacturer
  •   Features:
    Elegant Design, Slow Close and Quick Disconnect Lid
  • Price: 
Budget
Niagara N7711
  • Niagara N7711 Stealth
  • Our Rating: 8/10
  •  Water Consumption & Flush:
    0.8 GPF
    Single Flush
  •  Dimensions:
    29.5x17.2x28.5"
  •   Features:
    Quiet, Powerful Flush, Easy-to-clean Design
  • Price: 
Niagara 77001WHCO1
  • Niagara 77001WHCO1 Stealth
  • Our Rating: 8/10
  •  Water Consumption & Flush:
    0.8 GPF
    Pressure Assist Flush
  •  Dimensions:
    28.9x18.8x31"
  •   Features:
    Ultra-High-Efficiency Flush, Seat NOT Included
  • Price: 
Sterling 402028-0 Karsten
  • Sterling 402028-0 Karsten
  • Our Rating: 8/10
  •  Water Consumption & Flush:
    0.8 GPF
    Dual Force Technology
  •  Dimensions:
    31x15x29.2"
  •   Features:
    Easy-To-Use Flushing Options, Durable, Non-Porous Product
  • Price: 

1. Niagara 77002WHCO1 Stealth – Editor’s Choice

Niagara 77002WHCO1 Stealth Toilet

Most Affordable And Innovative Toilet

If you are new to toilets, then I bet Niagara is new to you. Niagara Conservation Products is a series of water savings low flow toilets that are produced by Water-Smart Corporation.

This is an Australian Program that is tasked with the responsibility of availing high-quality water efficient and energy-saving household fixtures.
Water-Smart has an A+ BBB rating. It’s, therefore not a surprise that their Niagara 77002WHC01 starts us off on this list.

Most Affordable

The Niagara 77002WHC01 is probably the most affordable commode here. Don’t confuse it with cheap construction though. This toilet is among the most innovatively designed units in our collection as well.

The most eye-catching feature of this toilet is its excellent flushing performance. It utilizes vacuum-assist hydraulics that require 0.8 gallons only to create a powerful and super quiet flush.

Most homeowners report that the Niagara 77002WHC01 flushes quietly without the loud swooshing sounds that several other models produce. As such, I bet this is a nice option for your bathroom’s paper-thin walls.

0.8 GPF Flush Rate

With its 0.8GPF flush rate, Water-Smart Corp. states that it could save you upwards of 20,000 gallons of water each year.

Other impressive features include an ADA-compliant seat height and a space-saving round bowl that makes it just right for your apartment’s bathroom.

[easyazon_link identifier=”B009RM8Z0E” locale=”US” tag=”toptoilets-20″]Check Price At Amazon[/easyazon_link]

2. Environflush Dual Flush Toilet – Premium Pick

Environflush Dual Flush Toilet

Most Stylish Toilet On The Market

The Environflush is a little bit on the pricier side compared to the Niagara Stealth above. But that’s certainly because we are talking about a one piece toilet here. And there’s more to that.

This Environflush toilet is among the most stylish fixtures on the market today. It might be the answer to homeowners who are hunting for a sleek and seamless crapper to glamorize their bathrooms.

Easy To Clean

Its one piece design will give you an easy time when cleaning and might complement your efforts of maintaining a hygienic bathroom.

This bowl tank configuration also gives your small bathroom a semblance of openness. Its round bowl saves you a few more inches lengthwise in case you are struggling to meet the International Building Code requirements.

Although it is no match to the Niagara in terms of water efficiency, this toilet’s dual flush performance might save you over 16,000 gallons of water each year.

Again, unlike our first recommendation, the Environflush comes fitted with soft-close lid and seat. The soft-close mechanism is good news if your kids find it fun to slam the toilet seat on the bowl each time.

Standard Height

I would also like to note here that this toilet has a standard height. It could fit the bill if you find trouble getting off a high-profile commode. In addition, this might be a great option to train your kids on how to use ‘mum and dad’s’ toilet.

[easyazon_link identifier=”B002531VZI” locale=”US” tag=”toptoilets-20″]Check Price At Amazon[/easyazon_link]

3. Niagara N7711 Niagara Stealth – Budget Buy

Niagara N7711 Niagara Stealth

Ultra Low Water Consumption

The Niagara N7711 is a sibling to the Niagara 77002WHCO1. These 2 systems are currently the only u-HET toilets thanks to their ultra-low water consumption rate. The major difference that the N7711 brings is that it is a one piece toilet.

As you may have learned in our other article of the best one piece toilets, this design offers several advantages including a sleek and seamless design and the assurance that the item will ship wholly. The biggest drawback that a 2 piece toilet presents is the likelihood of getting 2 parts that do not match or fit into each other.

One Piece Design

The one piece design also makes cleaning quite easy considering that there are no crevices that might harbor germs. Uniquely, this commode has a skirted trapway that hides all the nooks that might trap dust and make cleaning lengthy and somewhat hard.

Air Transfer Flushing System

The Niagara N7711 uses a patented flush chamber and air transfer flushing system. This manufacturer claims that this technology can flush up to 600g of waste in a single flush. Scanning several reviews from various online stores, most buyers affirm that the N7711 evacuates waste with the first flush each time.

We also like that the Niagara Stealth has a smooth, low-friction interior surface that prevents clinging besides boosting this toilet’s flushing performance.

[easyazon_link identifier=”B01MPYHI7V” locale=”US” tag=”toptoilets-20″]Check Price At Amazon[/easyazon_link]

Which Is The Best Low Flushing Toilet On The Market?

Editor’s Choice

[easyazon_image align=”center” identifier=”B009RM8Z0E” locale=”US” src=”https://images-na.ssl-images-amazon.com/images/I/31ODWzAzQJL._SL350.jpg” tag=”toptoilets-20″]

It’s not any hard to pick the best rated low flow toilet of the 3: the [easyazon_link identifier=”B009RM8Z0E” locale=”US” tag=”toptoilets-20″]Niagara 77002WHCO1 Stealth[/easyazon_link]. This toilet has several impressive features that might interest most homeowners who are after a serious water-saving toilet system.

Right off the bat, this toilet is innovatively designed and is probably the most affordable toilet from this list.

In addition, this toilet uses less than a gallon per flush yet it does not require a second flush.

Best Toilets Under 1 GPF Comparison Chart

Rank:Model:Our Verdict:Price:Our Rating:Water Consumption:Flush Type:Dimensions:Type:Special Features:Rough In:Shape:Material:Color:Finish:Weight:Installation Method:Certification:Warranty:
#1[easyazon_link identifier="B009RM8Z0E" locale="US" tag="toptoilets-20"]Niagara 77002WHCO1 Stealth[/easyazon_link]Best Overall (Our Pick)$$9/100.8 GPFPressure Assist Flush27x18.8x30"Two PieceUltra-High-Efficiency Flush, Extremely Quiet Flush12"RoundVitreous China, MetalWhiteWhite100 poundsFloor MountedWaterSenseCheck With The Manufacturer
#2[easyazon_link identifier="B002531VZI" locale="US" tag="toptoilets-20"]Environflush Dual Flush Toilet[/easyazon_link]Premium $$$8/100.8 GPFJet Syphon FlushCheck With The ManufacturerOne PieceElegant Design, Slow Close and Quick Disconnect Lid12"ElongatedCheck With The ManufacturerBlackBlack92 poundsFloor MountedCheck With The ManufacturerCheck With The Manufacturer
#3[easyazon_link identifier="B01MPYHI7V" locale="US" tag="toptoilets-20"]Niagara N7711 Stealth[/easyazon_link]Budget$$8/100.8 GPFSingle Flush29.5x17.2x28.5"One PieceQuiet, Powerful Flush, Easy-to-clean DesignCheck With The ManufacturerElongatedPorcelainWhiteWhite80 poundsFloor MountedWaterSenseLimited Lifetime
#4[easyazon_link identifier="B009MY4K1K" locale="US" tag="toptoilets-20"]Niagara 77001WHCO1 Stealth[/easyazon_link]$$8/100.8 GPFPressure Assist Flush28.9x18.8x31"Two PieceUltra-High-Efficiency Flush, Seat NOT Included12"ElongatedVitreous China, MetalWhiteWhite103 poundsFloor MountedWaterSense1 Year Warranty
#5[easyazon_link identifier="B00164VC9W" locale="US" tag="toptoilets-20"]Sterling 402028-0 Karsten[/easyazon_link]$$$8/100.8 GPFDual Force Technology31x15x29.2"Two PieceEasy-To-Use Flushing Options, Durable, Non-Porous Product12"ElongatedVitreous ChinaWhiteWhite81 poundsFloor MountedWaterSense5 Year Limited

Water Saving Toilet Buying Guide

As water gets more and more scarce and bills continue to hike, the need for an ultra-High Efficient Toilet is inevitable. The advent of toilets that can use as low as 0.8 gallons per flush might sound quite appealing.

Water Consumption

However, do remember that reduced amount of water per flush might result in increased risks of clogs and clinging issues or that there are some low flow toilets causing sewer problems too.

That being said, it’s important that you go past the manufacturer’s low water consumption claims and ensure that the flushing system is reliable. Scanning other users’ feedback (both positive and negative) might give you a glimpse of how the toilet performs in real life.

Comfort

Again, remember not to compromise comfort for a low flush rate. The market is full of systems that bring the best of both worlds. So, there’s no excuse for getting a toilet that makes you hate life in this era.

Among other things, go for a throne with the right height for you. If you are a senior citizen or your back has issues reaching for a low-profile seat, I bet a comfort height might be ideal for you.

Bowl Shape

Again, if you feel like a round bowl toilet does not offer enough support to your thigh region, an elongated commode which is a few inches longer and wider might be what you need.

Lastly, if you are so much into saving water, perhaps a composting toilet system might fit you better. As Stephen Harry of Lehman’s Retail store explains, these toilets require very little to zero water for their operations. Check out our comprehensive guide on composting toilets and how they work here.

Dan is the editor in chief and founder of this site, after running into troubles with his own old toilet a while ago. Discussing toilets is not your everyday topic, so let’s talk toilets today.