Winzo 22-3/4 inches Ultra-Compact One Piece Toilet

Winzo Ultra-Compact One Piece Toilet

Who Owns The Title For Ultra-Compact One Piece Toilet?

Just when you thought the Carus toilet with a length of 23.5 inches is the shortest imaginable, another pop out with just 22.75 inches. Looks like the race to make the shortest length toilet is not relenting anytime.

Can we expect to see a 21-inch free-standing short depth toilet eventually?

There are already toilets with even 20-inch length, but they are of the wall hung or concealed tank design. That’s the norm, it’s boring so let’s not go there.

Instead, we shall keep this discussion strictly to only the floor-mount, tank-and-bowl waste disposal device. And this is interesting because it is a delicate balancing act. You’ve got to consider the usability and functionality while subjecting to a tight physical limit. It’s not easy, and maybe even you, the user, have to compromise a little on your expectation.

Is it Really the Size You are Going For?

Do you really need that small of a toilet? There are only 2 possibilities – You have a tiny space or, physically, you are petite. But, whatever is the case, what holds true is that there are drawbacks that may affect an average person’s comfort level using it. Besides, replacement parts may not be as easy to obtain as regular toilets. So keep that in mind before you decide to go for it.

If you have exhausted all options and within your means to counter a space issue, then yes. Otherwise, it is always advisable to get a standard toilet designed for most people. Of course, and no offense please, if the size suits you, go get it.

What is Winzo and its Features?

It all started with Galba, then Horow (which was seen as coat-tailing Galba’s growing popularity), followed by DeerValley, and now Winzo (with a refreshing twist to the exterior).

It doesn’t come as a surprise now to learn of another new super compact toilet making its way into our tiny bathrooms. Who will be next, and at what depth or length are they going to offer? We shall see.

One thing you can be sure, the people behind these brands only have one belief. That is, there is good money to be made with 24-25 inch depth toilets. And the trend seems to be inching towards the 22″-23″ toilet models, which is what Winzo is positioning itself.

So who is Winzo exactly?

Unfortunately, there is no information about the company that owns the brand (at the time this post was written). But it seems to gain a little traction on Amazon. The glaring evidence is the images and videos posted by users in the reviews.

Only happy users are motivated to share their photos of their prized possession with an uplifting message. Don’t you think so?

Having said that, does it matter that you must know the company or business that is behind the brand before a buy decision? Preferably yes. But these days, anyone can sell almost anything legit on a platform like Amazon, Home Depot, and Walmart. So your judgment plays a crucial part before you decide to part with your hard-earned money.

The only thing you should be more conscious of is the support level. In most cases, a new business tends to take your satisfaction more seriously. What’s more, if you are buying from online sites like Amazon, you are covered by their A-Z guarantee. There’s no risk at all, so to speak.

Anyway, there’s always Carus by Tiny Bathrooms (formerly Luxury Modern Home) of New Jersey if you are not comfortable buying from ‘unknown sources.’ But if all you care about is the 22-3/4-inch length and price, then read on to see if the features are any good. TOC

Do You Mind if the Actual Length Turns Out to be 23-1/8″ Instead?

In case you are sold on the 22-3/4″ length and only to discover it was a 23-1/8-inch when you received the goods. Are you OK with the discrepancy?

Let’s get this straight before you harness the wrong idea from the question.

It has nothing to do with the seller’s integrity or to warn you of any marketing hype. Since the competition to be the smallest is getting intense, it’s every, Not Inch, but quarter-inch counts now. So be a smart and well-informed buyer to know the truth from the hype.

In any engineering measurements, there is always some allowance or tolerance to a given value. For a toilet, typically, the dimension tolerance is about ±1.5 to 2%. On Winzo’s spec sheet, you can see a little reminder that goes, “Dimensions may vary by up to 3/8 inch”. That’s reasonable and within tolerable limits.

So, this can also mean, technically, they are not wrong to send you a WZ5079 toilet that is 23-1/8″ long when it is officially stated as 22-3/4″ in length.

It is not like they will do that intentionally, or the statement is to cover a mistake. That’s how things work in engineering, and they are being upfront about it. Most people will either just shrug off the triviality or not bother with taking the measurements at all.

And this is definitely not an attempt to pre-frame you into accepting a less than ideal product. Remember this, if you are not satisfied with even a 1/8″ difference, feel free to ask for a refund or return.

Alright, this is just to inform, and let’s not get too deep into it. If you need clarification, you are most welcome to leave a message in the Comments below or contact us.

Time to move on to the features and see what the Winzos are made of. TOC

Winzo’s Features & Specifications Against Carus

In a hurry? Then jump straight to the Winzo versus Carus Comparison Table below.

It makes perfect sense to compare Winzo with the first 23″ (or 23.5″ to be precise) Carus toilet, which hit the market in 2019 and was well received by users. But just in case you have not heard about Carus, here’s a round-up of 24″ short toilets, which includes a Carus toilet review.

Let’s begin with the most critical part of the toilet, but the least talk about in almost all reviews – The Trapway.

Trapway Size

OK, this usually gets placed last in any reviews because it is pretty standard and nothing much to shout about. But since the Vendor boasts about its larger-than-normal trapway size, let’s give it the priority for the purpose of discussion and not to hold you up till last.

First of all, the trapway is where the siphon happens, the core activities of a siphonic toilet. It is usually a size smaller than the flush valve. The tank’s water will then flow into the bowl faster than it exits the bowl for the siphon to kick-in on time and flush out the content.

Some of the popular models from KOHLER and TOTO typically have a trapway of 2-1/4″ with a 3″ flush valve. And the largest trapway size known so far is 2-3/8″ of the Champion 4 by American Standard with a 4″ flush valve.

So, to claim a trapway size like 3.15 inches in diameter (3-1/8″ or 80mm), correspondingly, the flush valve diameter must also be shown. Otherwise, there is no credibility to the claim.

And looking at the Winzo’s flush valve, it looks similar to the one used in Galba and Carus, a tower or canister type flush valve. In case you are not aware, the maximum size of a tower valve is 3-inch. The 4-inch valve used on the American Standard’s Champion 4 is the chain and flapper system.

Suppose a larger-than 3″ canister valve is specially made for Winzo. In that case, the Vendor is suspiciously humble not to publicize the details. That will be a huge selling point no marketers would want to ignore. It just doesn’t make sense.

Now your guess is probably on point – they are likely to be from the same factory. So, is it a 3″ valve opening like the Galba? If it is, then it is quite unlikely the trapway size is 3.15″ or 80mm because there are feedbacks that the toilet “seems to flush well.”

What may happen when a 3″ flush valve is used with a 3.15″ trapway?

The design engineer will be fired on the spot. Just kidding. The likely scenario is, the siphon may only activate towards the end of the flush or not at all. A 3″ valve works exceptionally well with a 2″ or 2-1/4″ trapway, as seen by the many satisfied KOHLER and TOTO users. So, is that why it “seems to flush well?”

Until the Vendor can provide more clarity to the flush valve size, its claim for having the largest trapway capacity can only be treated as a marketing gimmick. Or an honest mistake? You decide.

Carus’s trapway size is 2″, and Winzo’s should not be too far off. The illustration below of the 80mm trapway is confusing to begin with. If there’s anything to go by, B should be the correct one, and A is NOT 80mm for sure. TOC

Confusing Trapway Size


Appearance is always highly subjective. It is entirely up to your personal preference. So, which, in your opinion, is a better looking toilet? If there is no clear answer, the best way to decide is which of the two is easier to clean or maintain.

The Winzo has flatter surfaces than the Carus, which means cleaning is definitely going to be (slightly) easier.

Winzo versus Carus

Easy to clean and maintain is always preferred. It will be a bonus if the toilet also comes with an open rim or rimless bowl. And the Winzo, for sure, is having just that, and it even has a TOTO-sounding name – Tornado Double Cyclone Flush System. Meanwhile, Carus is still using the conventional rim holes for flushing.

What is the difference between a conventional and rimless bowl? TOC

Tornado Double Cyclone Flush System
Winzo’s Tornado Double Cyclone Flushing System

Size Dimension

By the way, you are not reading just ONE particular Winzo toilet model here. The Winzo WZ5079 is the only one that has a length of 22-3/4 inches. The other three 23-inch toilet models are the WZ55069, WZ5079N, and WZ5089. And as usual, like the other mini size toilets, they are all one-piece toilets with a round front bowl.

Feature-wise, there are almost no differences among all 4 Winzo models. In fact, other than the 22-3/4″ WZ5079, you can just pick any of the other 3 and hardly spot any differences. If any, it’s the exterior design of the bowl and the seat. The models WZ5069 and WZ5079 will have a lip around the bowl.

Anyway, the differences are mainly cosmetics, which has no impact on the performance. So, just pick the design you like the most and don’t stress over 22-3/4″ or 23″. A quarter-inch difference won’t make your tiny bathroom look any smaller or bigger. TOC

Dual-Flushing Flush Valve & All Other Features

As mentioned previously, the flush valve of Winzo toilets looks very similar to that of Galba and Carus. They may look different in color and shape; they are all of the tower type flush valves. Compare to the chain and flapper, the tower valves are more durable and less susceptible to leaks. So this is a good feature.

Tower Flush Valve

The other features are pretty standard, like dual flushing, glazed bowl and trapway, and soft-closing seat.

Finally, the flushing capacity for all Winzo models is confusing. If you read in the Product Description on Amazon, it says 1.28 gpf but in another instance, on the same page, it clearly shows 0.8 / 1.6GPF.

The 1.28 GPF in the Product Description could be the average of 0.8 and 1.6 GPF.

That’s the best possible explanation (or cover-up) only the seller knows (hopefully). BUT, how do you explain the 1.28 / 0.8 GPF, which is clearly stated on Wayfair? And then, the spec sheet shows 0.8 / 1.6 GPF. (Download the Specifications (.pdf))

Winzo Specifications on Wayfair
Screenshot from Winzo’s Product Page on Wayfair

If you need clarity on the flushing capacity or water consumption, it is best to get it from the horse’s mouth. So please ask the seller on both Amazon and Wayfair.

However, if you want a 1.28 GPF and 23.5″ short toilet and not willing to waste time investigating whether the Winzo is a 1.28 or 1.6 GPF or the trapway is really 3.15″, here’s DeerValley DV-1F52807. TOC

Comparing with the Carus Toilet

22-3/4″ and 23″ is only a 1/4″ difference. Let’s just use the shortest WZ5079 to represent all the 23″ Winzo compact toilets against Carus. As mentioned, the specs are similar, and the price difference among the Winzo models is also not very significant.

Bowl ShapeRound FrontRound Front
Bowl Height / Seat Height15.5″ / 16″15.5″ / 16.5″
Bowl Width14″13.25″
Overall Length22.75″23.5″
Overall Height29″27.5″
Overall Width15″13.75″
Flushing Capacity1.6/0.8 GPF
(Please verify with Vendor)
1.6/0.8 GPF
Check Price

Pick Your Ideal Small Toilet

Here are all the 23-inch toilets from Winzo.

Winzo WZ5079
Winzo WZ5079
  • One-piece & Skirted with Round-Front Bowl
  • Dual flush Push-Button
  • Flushing Capacity – 1.6 / 0.8 GPF (1)
  • Toilet Length – 22-3/4 inches
  • 12-inch rough-in
  • Slow-closing Seat Included

Available on:

Winzo WZ5079N
Winzo WZ5079N
  • One-piece & Skirted with Round-Front Bowl
  • Dual flush Push-Button
  • Flushing Capacity – 1.6 / 0.8 GPF (1)
  • Toilet Length – 23 inches
  • 12-inch rough-in
  • Slow-closing Seat Included

Available on:

Winzo WZ5069
Winzo WZ5069
  • One-piece & Skirted with Round-Front Bowl
  • Dual flush Push-Button
  • Flushing Capacity – 1.6 / 0.8 GPF (1)
  • Toilet Length – 23 inches
  • 12-inch rough-in
  • Slow-closing Seat Included

Available on:

Winzo WZ5089
Winzo WZ5089
  • One-piece & Skirted with Round-Front Bowl
  • Dual flush Push-Button
  • Flushing Capacity – 1.6 / 0.8 GPF (1)
  • Toilet Length – 23 inches
  • 12-inch rough-in
  • Slow-closing Seat Included

Available on:

(1) Please verify with Vendor.

Another 23-1/2″ Short Depth Toilet – DeerValley DV-1F52807

DeerValley DV-1F52807
DeerValley DV-1F52807

This is another shot at Carus and Swiss Madison Sublime II with a 23.5″ length and as a HET toilet with a flushing capacity of 1.28 GPF. However, this DeerValley DV-1F52807 is a single flush toilet.

The 26-inch overall height makes it low profile and elegant. It will look almost picture-perfect in a tiny bathroom setup. Other than that, nothing specific to address. You have seen one; you have seen it all.

So, do you still need a review for this DeerValley DV-1F52807?

Probably not. 🙂

Anyway, feel free to connect if you need a second opinion. TOC

DeerValley DV-1F52807 – Quick Specs
  • Overall Length – 23.5-inch
  • Overall Height – 26-inch
  • Seat Height – 15-3/4-inch
  • Bowl Width – 15-1/2-inch
  • Bowl Shape – Elongated
  • Rough-in – 12-inch
  • Flushing Capacity – 1.28 GPF / Single Flush
DeerValley DV-1F52807 Dimension

DeerValley DV-1F52807 is available on:   WalmarteBayAmazon


You probably aren’t sure if you should go for the ultra-compact one piece toilet or stick with the now runner-up Carus. But the price is too attractive on Winzo; maybe it’s worth the risk? You are absolutely safe, whichever way you swing. Both are great compact toilets to install in a small space.

If you are distracted by the inaccuracies that cause you to hesitate on the purchase, our apology. But it is important that you know about these contradictions and possibly false claims, no matter how insignificant they may be. It will allow you to make better decisions.

What’s more important is the service and support you are getting. And it seems like they (Winzo) are pretty responsive in replying to questions. Give it a try, ask some questions you may have, and make the purchase only when you are convinced you are in good hands.

And if you are not prepared to cut them any slack, there is the DeerValley DV-1F52807. A great option (without the confusion) if you are OK with a 23.5-inch length and 1.28 GPF single flush HET. They have been around for a while now, so they are predictable with a reasonable service level. TOC

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