Inspired by water for 70 years, OLI is now the largest manufacturer of cisterns in Southern Europe and can be found in bathrooms all over the world. Constantly growing and with its sights set on the future, OLI already has six commercial and logistics subsidiaries to strengthen its market position.OLI’s aim is to develop aesthetically appealing and functionally distinctive solutions that make the bathroom an efficient, sustainable, comfortable and safe space for everyone. With a focus on cisterns and all their components, such as flushing mechanisms, OLI also offers an ever-expanding range of products that combine innovation and design with sustainability and a constant commitment to the rational and efficient use of water.
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Built-in cisterns
OLI’s built-in cisterns have been developed with a focus on functionality, reliability and a simple installation principle. Hidden behind the wall is a solution in which the technology has been thought through down to the smallest detail to ensure stable and long-lasting operation.
The systems are designed to be flexible and easy to integrate into various types of bathroom projects – whether in new builds or renovations. At the same time, emphasis has been placed on quiet operation and a compact design, which allows for freedom in interior design and creates a clean, minimalist look in the room.
OLI combines technical precision with a well-thought-out design, in which every component has a function and contributes to an overall solution designed to work seamlessly in everyday life.
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Control panels
OLI control panels are available in a wide range of designs and finishes, making it possible to adapt their look to both modern and classic bathroom settings. From subtle matt finishes to more striking metallic surfaces, the focus is on combining function and aesthetics in a single, simple detail.
A good example is the design “Less is More” – a control panel whose shape is inspired by the mechanism itself and the desire to incorporate it into a more contemporary and forward-looking design aesthetic.
Plus and minus. No more, no less. No superfluous symbols or visual distractions – just an intuitive process where the choice is made at a glance. The design reduces the process to its essence and creates a subtle interpretation of function.
The design reflects its era through simple yet striking forms, in which every detail has been carefully considered and reduced to the essentials – without unnecessary embellishment, but with full functionality and visual tranquillity
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Featured products
Discover OLI’s frost-free products.
BLINK
Pneumatic control panel
QR-INOX cistern with pneumatic flush for wall-mounted toilet
LESS IS MORE mechanical control panel
OLI120 PLUS Nordic built-in cistern
Frequently asked questions
Find out more about cisterns and control panels
What is the advantage of the "PLUS technology" in OLI’s built-in cisterns?
OLI’s built-in cisterns (such as the OLI120 PLUS and EXPERT PLUS) are equipped with innovative technology that delays water filling. This means that the cistern only starts to refill with water, after that the flush valve is fully closed. This clever feature prevents unnecessary water wastage and saves up to 9 litres of water a day.
How much weight can OLI’s built-in frames support?
Safety is a top priority. The frames for both the OLI120 PLUS and EXPERT PLUS concealed cisterns have been thoroughly tested to ensure they can withstand a load of up to 400 kg.
Can the OLI120 PLUS be set to different flush volumes?
Yes, by default, the cistern is set to a standard dual flush of 6/3 litres. However, to optimise water consumption even further, it can easily be adjusted and set to, for example, 4/2 litres or 4.5/3 litres.
Can built-in cisterns be fitted in both plasterboard walls and brick walls?
Yes, the products are extremely versatile and approved for installation in both solid walls (e.g. brick or concrete) and lightweight partition walls (e.g. plasterboard and stud walls). In addition, the feet on the frame can be locked in place for quick height adjustment (0–200 mm).
What types of control panels does OLI offer?
OLI offers a very wide range of control panels, so you can find exactly the look that suits your bathroom. The panels are divided into three main functional categories:
- Mechanical: The classic, reliable print
- Pneumatic: Air-operated, gentle pressure
- Electronic / Contactless: Sensor-controlled and hygienic flush
What is the difference between the OLI Seal Box and a standard built-in cistern?
Seal Box comes complete with an integrated plastic leak-proof box. The system is designed for wall mounting with a visible, elegant glass front. The drainage box ensures that any internal condensation or leaks are channelled away in a controlled manner, making it ideal for installations where particularly stringent requirements apply to wet-room safety. It is available for both wall-hung toilets and back-to-wall floor-mounted toilets.
What is the "HALLO" control panel, and what can it do?
HELLO is OLI’s vision for the bathroom of the future. It is an extended, touch-free electronic control panel with automatic flushing. It can be connected to a dedicated smartphone app (available on Google Play and the App Store), where you can view statistics and customise the rinse settings.
Can I buy an OLI flush plate and fit it to a cistern from another brand?
No, unfortunately you can’t. Control panels and concealed cisterns are not interchangeable between manufacturers. Each brand has its own unique mechanisms, measurements and dimensions behind the wall. An OLI control panel is therefore only compatible with an OLI built-in cistern.
Your dream starts here
To ensure that your bathroom furniture, toilet or washbasin lives up to its full potential and lasts for many years, we recommend using a specialist for installation. That's why we've partnered with experienced installers and dealers who can help you. If you fall in love with one of our sinks, toilets or bathroom furniture, you can find the plumbing number in our price lists and contact one of our skilled dealers.
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Want to read more?
Read more about frostline frost-free products or find specific products on the frostline website or at our retailers.
Do you have any questions?
We are ready to help you with everything you need when it comes to bathroom design. Whether you're looking for the perfect bathroom furniture, a stylish toilet, an elegant washbasin, a spacious bathtub, a mirror with light and heat or a mixer tap for the shower or washbasin. Our team is here to guide you. Contact us directly or visit our showroom in Aarhus, where you can experience our carefully selected range and get personalised advice. We will help you find the ideal solution for your bathroom project.
