American Standard 606DA001.020 H2Optimum Two-Piece Toilet with Toilet Seat and Wax Ring, Round Front, Standard Height, White, 1.1 gpf
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Size: Standard Height
Style: Round
Pattern Name: Tank + Bowl + Seat + Wax Ring
Features
- CLEARS THE BOWL WITH JUST 1.1GPF/4.2LPF: This ultra-high efficiency toilet is the lowest water-consuming gravity flush toilet available for impressive water savings, the highest MaP (Maximum Performance) score of 1,000 grams, and is WaterSense certified
- EASY TO CLEAN: EverClean surface inhibits the growth of unpleasant stain and odor-causing buildup
- EVERY FLUSH CLEANS THE BOWL: A forceful rush of water from the PowerWash rim helps to scrub the bowl with every flush
- COMPLETE TOILET INCLUDES: Slow-close seat, chrome trip lever, color-matched bolt caps, and wax ring
- Meets EPA WaterSense criteria
Description
The H2Optimum Two-Piece Round Front Toilet from American Standard is the highest water-saving gravity flush toilet available. The H2Optimum delivers impressive flushing performance using 1.1 gallons per flush/4.2Lpf. This space-saving, round-front toilet is ideal for smaller bathrooms where space may be limited.
Color: White
Product Dimensions: 27.75"D x 15"W x 30"H
Material: Plastic, Vitreous China
Brand: American Standard
Item Weight: 72.57 Pounds
Color: White
Product Dimensions: 27.75"D x 15"W x 30"H
Material: Plastic, Vitreous China
Brand: American Standard
Item Weight: 72.57 Pounds
Installation Type: Floor Mounted
Shape: Round
Seat Material Type: Plastic
Manufacturer: American Standard
UPC: 193406303957
Part Number: 606DA001.020
Item Weight: 72.6 pounds
Item model number: 606DA001.020
Size: Standard Height
Style: Round
Pattern: Tank + Bowl + Seat + Wax Ring
Item Package Quantity: 1
Included Components: Wax Ring, Seat, Toilet, Instruction Manual
Batteries Included?: No
Batteries Required?: No
Date First Available: August 29, 2023
Frequently asked questions
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Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
I bought this to add to a new bathroom we installed in our house. Contrary to other reviews, I did not have any problems with the shipping. Both parts arrived together. This has all the parts I needed for the installation except for the hose to connect it to the water supply. ( I think it's standard that you always have to purchase that separately). This looks nice in our bathroom and flushes great. It is easy to clean, is comfortable, and does not have any leaks.
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Reviewed in the United States on March 26, 2025 by Joe Paul
Size: Chair Height
Style: Elongated
Pattern Name: Tank + Bowl + Seat + Wax Ring
This was an excellent choice and it looks and performs very well. I came in an excellent packaging container.
Reviewed in the United States on May 15, 2025 by Michael M.
Size: Standard Height
Style: Modern
Pattern Name: Tank + Bowl
I thought this from Amazon because I was lazy and didn’t want to go to the home improvement store and lug a toilet back home. So that was cool to get this delivered to my front door. It does not come with a toilet seat which is super weird in my book. Good thing I just bought a slow close seat for the toilet I was replacing. Install is pretty straight forward. It’s a little more difficult than other toilets I’ve installed. The flush is powerful, yet quiet. Quality of material seems to be really good. It’s comfortable to sit on. It’s a slim toilet, the back tank looks too small, but provides the right amount of water, so I guess the design is good.
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Reviewed in the United States on September 22, 2024 by Christopher Bright
Size: Standard Height
Style: Modern
Pattern Name: Tank + Bowl
Next to my iPad, this is one of my greatest purchases. No post purchase regrets, with either of these products. The engineering that went into the design is apparent. The tall tank offers great potential energy in the water delivered to the flush ring. The flush ring water enters the bowl through the siphon jet, forcing the trapway (siphon) water over the hump to develop a powerful siphonic action. The siphonic action is amplified because of the 2” trapway. Next to a commercial toilet, this is the most powerful flushing toilet I’ve seen. I installed the toilet with the superior parts that came with it. Installation was simple and straight-forward. I appreciated the stainless steel tank bolts, Fluidmaster Fill Valve and Fluidmaster Flush Valve. These are time-tested and inexpensive replacement parts that work well. I used a simple wax seal to mount the toilet on a flange that was level with the tile floor.
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Reviewed in the United States on December 30, 2023 by Virginia
Size: Standard Height
Style: Modern
Pattern Name: Tank + Bowl
I'm in the middle of fixing up my house. I bought this toilet last year, it came in a big box, and since I needed to tear out the rotten bathroom floor before installing the toilet, I set it to the side and didn't open the box until today. To my surprise, the big box was nearly empty, containing only a tiny box with the toilet tank inside, but no toilet bowl. I'm very angry. It was a lot of money to pay to receive only half a toilet, and I can't even buy the bowl anywhere, because they don't appear to sell it. I see that several other reviewers also got only one half, either the toilet tank or the bowl. If you buy, don't tell yourself they wont do the same to you, because they will.
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Reviewed in the United States on May 13, 2021 by Amazon Customer
Size: Standard Height
Style: Modern
Pattern Name: Tank + Bowl
I manage a small apartment building. This toilet is great because of: 1. 1.1 GPF 2. Standard, simple flush mechanisms -- replacement parts can be found everywhere. 3. Low cost. 4. Good brand -- Am Std. My go-to toilet has been the American Standard Cadet 3 -- the 3 represents the 3 inch trapway between the tank and bowl. The Cadet 3 1.6 gpf was amazing and never ever clogged. The Cadet 3 1.28 gpf wasn't bad, but in reality is was really the 1.6 with less water in the tank. The problem was that a lot of water velocity was lost. This 1.1 gpf works great. It had to use a few a few tricks/tweaks vs the Cadet 3: 1. The trapway is back to 2". 2. The tank is narrower, forcing water in the tank to start at a higher level (potential energy state). 3. The tank's flapper closes quickly, but you can hold it down for flushing "bigger loads". 4. The bowl's waterway is a little more constricted so that it requires less water. 5. You can see the other design features on the American Standard website. Overall these tweaks create great water pressure/flow/suction. It's really quite impressive. If you need a more water, just hold down the flush handle a few extra seconds -- no big deal. Tips for you installers: 1. Don't use the included Fluidmaster fill valve. Buy a Korky Platinum. It's much better. 2. Buy your own seat. 3. Buy the Fluidmaster Better Than Wax seal. 4. Don't forget to use shims to make sure the toilet is secure. I say this toilet is underrated because it is a special-order item at Home Depot. If people saw it in the store, I think it would ruin the sales of the other more expensive toilets. I am wary of fancy dual-flush toilet mechanisms. One single plumber phone call can ruin all the money saved by using less water. KISS - Keep It Simple Stupid is my motto.
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Reviewed in the United States on September 12, 2019 by D. Ho
Size: Standard Height
Style: Round
Pattern Name: Tank + Bowl + Seat + Wax Ring
It's beautiful, clean and works perfectly! I just want a good, simple toilet for a reasonable price. I think I got it! It was delivered in 4 days and everything came with it including the seat! I love my new toilet 1
Reviewed in the United States on November 11, 2024 by Rosemary Traill
Size: Standard Height
Style: Modern
Pattern Name: Tank + Bowl
Have ordered several. Great product by a great company. However one was broken upon arrival. Had to load and take to the USPS for return and was not given a QR code to return. Had to print out label at home. Very heavy to lift on the counter scale not sure why Amazon decided to make the return so difficult. Should have used UPS for return the counter scale is not so high and designed for heavier boxes. Horrible experience for returning this damaged item.
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Reviewed in the United States on June 2, 2025 by Customer