The PURAIN Rainwater filter has a standardized DN pipe collar or spigot end ports for easy installation in the tank. (Note the height offset).

The best place to install a rainwater filter is in the tank. Now there is no need for separate downpipe filters or separate filtration tanks. The PURAIN Rainwater filter itself can be directly used as an overflow...

Here you will find a page of the most important technical data, connecting dimensions, weight, size and material...

As a general rule, the PURAIN rainwater filter is selected based on the diameter of the rainwater collecting pipe.