Easy to assemble, install and maintain

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

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Scope of application and dimensions

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

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Technic at a glance

Technology at a glance

All informations of the most important technical data, connecting dimensions, weight, size and material you will find in our INTEWA Catalog.

The possibility to save drinking water has enhanced strongly the last years.

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A rainwater filter cleaning itself by the principle of the hydraulic jump.

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The DRAINMAX tunnel infiltration system: The only plastic trench with flushable  ground.

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The optimized water pump station for rainwater and greywater utilization in every planned construction.

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