Dimensions of Flat Water Tanks - note height including lid.
The main dimensions of our flat tanks, such as length, width and height, are given in cm rounded up on the product page. The height stated there generally refers to the tank height without the lid opening.
For exact details such as LxWxH in mm or the height of the flat tank including the tank lid, please refer to the technical drawings of the flat water tanks. These can be found on the relevant product page under the 'Drawings and Certificates' tab.
The exact position of the brass threaded BSP outlet is also shown. In addition, the technical drawings usually show the position and size of the baffle walls and the recesses and ribs that are relevant for planning further connections and installation.


Advantages of buying a Flat Water Tank from Tanks Direkt
- Extra-flat design with low height for space-saving installation
- Partially flat 12 cm tank lids - flush with the top of the tank
- High-quality, UV-stable and food-safe material
- Moulded brass threaded BSP outlets (drilled / undrilled)
- Fill level visible in natural / translucent colour
- Tank Lids with/without venting option
- Flexible and multifunctional use
- Selectable RAL colours for your specific application
- Customisable with Spin Weld Outlets
- Easy to install Push-In BSP Fittings / PP Tank Connection Sets - can be installed completely from the outside
- Matching PVC Tank Connection Sets for self-assembly at all flat spots
- Matching Brass Tank Connection Sets for installation on the brass threaded BSP outlets
Flat Water Tanks as 3D model, temperature & chemical resistance
Our flat water tanks can easily store and use water up to a maximum temperature of 70 degrees Celsius. Food compliance for the storage of potable water in our flat water tanks is documented in the WRAS certificate.
For further information on material resistance to specific liquids or chemicals for storage in our flat water tanks, please refer to the resistance list. On request, we can provide you, as a business customer, with 3D models in the form of CAD/step files of the flat water tanks for your individual planning. Of course you can also use the flat water tanks for the storage of diesel.