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Duravit Toilets: What to Check in Their Specs

Short answer: Read the flush volume first: a WaterSense labeled Duravit toilet uses 1.28 gallons per flush or less, which is 20 percent below the federal standard of 1.6 gallons. Then check the bowl shape (round or elongated) to match the space and seating preference, and confirm the mounting type (floor-mounted or wall-hung). Finish with rough-in, seat height, and accessibility details so the toilet fits your bathroom and any ADA requirements you need to meet.

Start With the Flush Volume

Start with the flush volume on any Duravit spec sheet. Toilets are by far the main source of water use in the home, accounting for nearly 30 percent of an average home's indoor water consumption, according to the EPA. Older, inefficient toilets can use as much as 6 gallons per flush, while the current federal standard is 1.6 gallons per flush. WaterSense labeled toilets use 1.28 gallons per flush or less, which is 20 percent less than that standard.

When you look at a Duravit model, find the gallons per flush (GPF) figure. A model that carries the WaterSense label is independently certified to meet EPA criteria for both performance and efficiency, so the flush volume becomes a useful baseline rather than an empty number. If a model is not labeled, compare its listed GPF against the federal standard and consider whether the reduction matters for your bathroom. Across the whole home, the average American family uses more than 300 gallons of water per day, and roughly 70 percent of that use occurs indoors. For more context on GPF and certification, see what is GPF and browse the best 1.28 GPF toilets.

Choose a Bowl Shape for the Space

Duravit spec sheets list the bowl shape for each model. The two common choices are round and elongated. Round bowls take up less depth, which helps in a compact bathroom. Elongated bowls extend farther forward and usually give more seating room. The best choice depends on the space you have and how the toilet will be used.

Before picking a shape, measure the available depth in the bathroom, from the wall or tank to the front of the toilet. An elongated model needs more clearance in front of the bowl, while a round model can be easier to fit near doors or vanities. The shape also affects seat choice and overall proportions. Learn the difference in round vs elongated toilets and compare options in the best elongated toilets guide.

Decide Between Floor-Mounted and Wall-Hung

Mounting type tells you how a Duravit toilet connects to the bathroom. A floor-mounted toilet sits on the finished floor and connects to a floor drain. A wall-hung toilet attaches to an in-wall carrier frame, hides the tank, and leaves the floor clear. The choice affects the look, the installation sequence, and how easy the bathroom is to clean.

Read the spec sheet for the mounting type before anything else. If you choose a wall-hung model, confirm that the bathroom wall can accept the carrier frame and that the supply and drain lines can be routed to the right height. For floor-mounted models, check the distance from the wall to the center of the floor drain, commonly called the rough-in. The matching learn page covers wall-hung toilet requirements, and the best wall-hung toilets guide has curated picks to compare.

Check Rough-In and Overall Dimensions

The rough-in is a critical number for a floor-mounted toilet: it is the distance from the finished wall to the center of the floor drain. If the rough-in does not match your existing bathroom plumbing, the toilet will not sit properly against the wall. The spec sheet should state the rough-in; if it does not, measure the current toilet's rough-in before buying.

Aside from rough-in, look at the overall length, width, and height of the Duravit model. The spec sheet gives the base dimensions, but the real test is your bathroom. Check the distance from the front of the toilet to the nearest obstacle, the width beside the bowl, and the clearance below any window or vanity. For guidance on measuring, see how to measure rough-in.

Look at Accessibility and Seat Height

Seat height is part of the Duravit spec sheet, and it matters for comfort as well as accessibility. A standard-height toilet is common in older installations; a chair-height toilet raises the seat to a more comfortable level for many adults. If you are designing for accessibility, keep in mind that the 2010 ADA Standards set minimum requirements for newly constructed and altered facilities covered by the ADA. The standards address clearances and fixture placement as well as seat height.

When reading the spec, check the seat height and compare it with the height that works for the people using the bathroom. For a home bathroom, the same accessibility principles can guide a more comfortable layout, even when a public accommodation is not involved. For the basics, see ADA toilet requirements and toilet seat height guide.

Review the Flush System and Certification

A Duravit toilet's flush system is either single flush or dual flush. A single-flush model uses the same volume for every flush. A dual-flush model gives you a reduced flush for liquid waste and a full flush for solid waste, so you can save water by choosing the reduced mode. The EPA notes that opting for a WaterSense labeled dual-flush toilet can save even more water by choosing a reduced-flush mode that uses a smaller volume of water to remove liquid waste.

Look for the flush control type in the spec sheet: a lever or button is one detail, the flush valve is another. A carefully matched flush system and bowl shape affect how well the toilet clears the bowl, though the best performance data usually comes from the manufacturer's spec page and independent MAP testing. WaterSense labeled toilets must complete third-party certification to earn the label. Compare models in the best dual flush toilets and best 1.2 to 1.4 GPF toilets guides.

What to pick for your use

If youPickBuying guide
You want a verified water-saving toiletA WaterSense labeled Duravit with 1.28 GPF or lessBest 1.28 GPF Toilets in 2026: 15 Picks Compared on Specs
Your bathroom has limited depthA round-front Duravit modelBest Round Toilets in 2026: 14 Picks Compared on Specs
You want a larger seating areaAn elongated Duravit modelBest Elongated Toilets in 2026: 15 Picks Compared on Specs
You want a clear floor and hidden tankA wall-hung Duravit modelBest Wall-Hung Toilets in 2026: 15 Picks Compared on Specs
You prefer the simplest installationA floor-mounted Duravit modelBest Duravit Toilets in 2026: 4 Picks Compared on Specs
You want the full overview of top Duravit modelsThe current best Duravit toilet listBest Duravit Toilets in 2026: 4 Picks Compared on Specs

Questions

What does GPF mean on a Duravit toilet?

GPF means gallons per flush. The current federal standard is 1.6 gallons per flush, while WaterSense labeled toilets use 1.28 gallons per flush or less. The GPF number on a spec sheet tells you how much water the toilet uses for each flush.

Are all Duravit toilets WaterSense labeled?

Only models that meet EPA's criteria for performance and efficiency and complete independent third-party certification can carry the WaterSense label. The label is a quick way to find an efficient model, but a spec sheet without the label can still be compared by its flush volume.

Which bowl shape should I choose for a small bathroom?

A round bowl usually needs less depth, so it can fit tighter spaces. An elongated bowl provides a larger seating area but extends farther forward. Measure the bathroom depth before deciding.

Can a wall-hung Duravit toilet be installed in any bathroom?

A wall-hung toilet needs an in-wall carrier frame and routing for supply and drain lines. The wall structure must support the frame, so not every bathroom is a simple retrofit.

Do I need an ADA-compliant Duravit toilet?

If the bathroom is part of a newly constructed or altered facility subject to the 2010 ADA Standards, yes, the fixture must comply with those requirements. For a private home, ADA-style seat height and clearance are optional but can improve comfort.

Revision notes

  • : First published.

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