Close coupled toilets

What is a WC combi and why should you choose it?

A WC combi (also called WC combi, combined toilet, or combo toilet) refers to a toilet where the tank is placed directly on the bowl. Unlike in-wall systems, there’s no complicated installation into the wall.

You may also encounter terms like toilet with a top tank, WC with a tank, or combined toilet. All these terms refer to the WC combi.

Main advantages of WC combis:

• easy installation without construction modifications
• affordable price (ideal as a cheap WC combi)
• easy maintenance and service
• wide selection of designs and features

If you're renovating an apartment or equipping a rental property, a WC combi set is often the fastest and most effective solution.

What to ask before buying a WC combi?

Choosing a new toilet isn’t just about design. For the installation to go smoothly and for the combi toilet to function correctly, you need to know the technical parameters of your bathroom. Before purchasing, answer these basic questions:

• Where does the waste go? Do you have a floor exit or a wall exit? This is the most important parameter and cannot easily be changed.
• Where is the water supply? The water may enter the tank from the side or the bottom. It must match your existing valve.
• How much space do you have? Combi toilets take up slightly more space than wall-mounted ones, so check the total depth, including the tank.
• Who will use the toilet? For seniors or people with mobility restrictions, there are models with a higher bowl.

Note: When measuring the space, don’t forget about door clearance. The WC combi shouldn’t block entry to the bathroom or bump into the sink. 

Why choose a combined WC?

The main advantage is that a WC with a tank is a standalone element. Installation doesn’t require intervention in the wall construction, which is especially appreciated during renovations in panel buildings. If anything breaks in the tank, everything is easily accessible and repairable without the need to dismantle the tiles.

Additionally, a WC combi set is often purchased as one complete set, which will save you the trouble of ensuring compatibility between the bowl, tank, and flush mechanism. If you're looking for a cheap WC combi that you can simply unpack and connect, this is the ideal choice.

How to choose the right WC combi?

Choosing a toilet affects your comfort and water consumption. Focus on key areas such as waste direction, water tank filling, features, technologies, and more. 

Waste direction – basic division

This is the technical heart of the selection. If you choose incorrectly, the WC combi won’t fit.

• WC combi back waste – the waste pipe runs horizontally into the wall.
• WC combi bottom waste – the waste goes vertically down into the floor.
• WC combi vario waste – a very practical solution. Thanks to the special shape of the bowl and the connecting elbow, this WC can be connected to back, bottom, and angled waste.

Note: If you choose the wrong type, installation will not be possible without modifications.

Water filling the tank

A WC with a top tank (more precisely, a tank placed on the bowl) requires connection to water.

• Side filling – the valve is visible on the side of the tank. It’s a traditional solution that is easy to install.
• Bottom filling – the water supply is hidden under the tank, which looks cleaner and is generally quieter when flushing.

Flush mechanism for WC combi

Modern WC combis offer two main variants:

• With a flush ring – water flows around the bowl.
• Without a flush ring (rimless) – a modern solution that makes toilet maintenance easier.

Flush mechanism

WC combis use dual flush. This allows you to choose between a small (e.g., 3 liters) and a large (e.g., 6 liters) volume of water. Over time, this saves thousands of liters of water annually.

Toilet with tank and its features

On our e-shop, you’ll find:

• WC combi without seat – a cheaper option
• WC combi set (with seat) – a more practical solution with no need to purchase a separate WC seat

Special types of WC combi

We also offer special solutions for seniors, children, and people with limited mobility.

• WC bidet combi – the ideal choice for those who want maximum hygiene but don’t have room for a separate bidet in their bathroom. This combination of a WC and bidet has an integrated nozzle directly in the ceramic.
• WC combi for disabled – these models have an elevated seat (often around 50 cm), which makes sitting down and getting up easier.
• Children's WC combi – smaller dimensions and a playful design for kindergartens or homes with small children.

Modern technologies and surfaces

A toilet is no longer just a "piece of ceramics". Manufacturers develop special surface treatments that repel water and dirt.

• Special surface treatment – a technology that ensures that water droplets quickly run off the ceramic and don't form limescale. This makes maintenance easier, even without chemicals.
• Antibacterial treatment – manufacturers add silver ions to the glaze, which actively inhibit bacterial growth.

Installation and maintenance: what awaits you after the purchase?

Replacing an old toilet with a new WC combi is a one-afternoon task for a handy DIYer. Just disconnect the old toilet, clean the area, and connect the new WC using flexible hoses and cuffs.

 

For maintenance, a toilet with a tank and Rimless technology or a special surface treatment will save you a lot of work. All you need is a regular cleaner and a cloth. Avoid harsh wire sponges that could damage the glaze.

Proven brands in our offer

Quality ceramics are the foundation of longevity. At SANITINO, we rely on manufacturers with a strong reputation in the industry. On our website, you’ll find both the cheapest WC combis and luxurious models. Choose WC with a tank from brands like Villeroy & Boch, Duravit, Kielle, Laufen, JIKA, ROCA, Sapho, Geberit, RAVAK, Ideal Standard, and more.

Why buy WC combi at SANITINO?

At SANITINO, we believe that buying a toilet can be an enjoyable experience. We offer a wide selection, where you'll find both the cheapest WC combis for basic needs and technologically advanced models for demanding users. Because we buy directly from manufacturers, we guarantee the quality and originality of every product.

Many models are in stock and ready for immediate dispatch so you won’t have to wait for your new toilet. For selected models, we also offer great WC combi deals or free shipping. If you're unsure whether to choose a WC combi with a vario waste system or need help selecting a tank, our technical support is here for you. We'll help you find the solution that fits perfectly in your bathroom and will serve you flawlessly for many years.

 

Combined Toilets and Cisterns

If you have decided on a combined toilet, the first crucial criterion when choosing the right model is the waste connection type. The most common types are bottom outlet and rear outlet, with both options similarly represented in product offerings. The rear outlet is horizontal, while the bottom outlet is vertical and goes into the floor. Another technological aspect to consider when selecting a combined toilet is the cistern fill type. This refers to how the water supply is connected to the cistern – it can be side or bottom fill. Both options are equally available for combined toilets in the product catalog.

Flushing Technology – With or Without Rim?

For a combined toilet, as well as for any other toilet, another key factor is the flushing method. A standard combined toilet has a so-called rim around the top edge of the bowl. This helps distribute water evenly so the bowl is thoroughly rinsed. However, the rim has drawbacks – it can accumulate bacteria, limescale, and other debris more easily. Manufacturers have recently introduced rimless solutions, known as rimless toilets. The bowl has a specially shaped edge where water flows directly. In addition to being more hygienic, rimless toilets use less water when flushing.

Accessories – Pay Attention to the Toilet Seat

Among accessories, the cistern is of course the first consideration if it is not integrated into the combined toilet. Besides the various flushing systems, you should consider the fill volume. Also, pay attention to the toilet seat. Some combined toilets come with a seat included, while others are sold without a toilet seat. If you can choose the seat, we recommend models with SoftClose technology. This ensures the seat closes slowly and quietly. Thanks to this technology, the toilet seat has a longer lifespan and is better suited for households with children.

Dimensions – Length and Height Are Important

Unlike wall-hung toilets, users cannot adjust the height of a combined toilet during installation. Combined toilets have fixed dimensions, which are specified by the manufacturer in the product details. Pay attention to them.

Both length and height are important. Length matters because a smaller bathroom can only accommodate a compact combined toilet. Height is crucial depending on the users’ needs. The standard height is 45 cm, but this may not suit everyone. For example, it may be too high for children, in which case families may prefer a smaller model or children’s combined toilet. Conversely, elderly people or those with limited mobility will appreciate a higher toilet that makes standing up easier. For these users, we offer combined toilets for people with disabilities.

Numerous Brands Available at SANITINO

The most affordable combined toilets are offered by Aqualine. Very popular are also combined toilets with cisterns from Villeroy & Boch, Ideal Standard, Jika, Laufen, GROHE, Geberit, and others.

SANITINO TIP: Is your toilet flushing poorly? Replace the WC combined toilet flush mechanism.