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GRS with connection at rain water cistern
Simply practical: the rainwater collector with the rainwater barrel connecting hose
 
Filter* and collect rainwater at the same time 
 
The WISY rainwater collector filters* / collects the rainwater from the roof and leads it into the rainwater barrel.
The construction is the same as the patented original WISY filter principle that has proved itself for years.
You collect only clean water through the vertically placed filter*. Dirt, moss, leaves and insects are not retained but immediately washed into the drain.
Your rainwater barrel no longer overflows; the automatic overflow inside the rainwater collector sees to that.
All parts of the rainwater collector are manufactured of rust-free stainless-steel. This guarantees an absolutely corrosion-free and frost-resistant collector.
Simple care: the stainless-steel filter can be cleaned in the dish-washing machine.
The rainwater collector can be extended as required (see accessories).
The rainwater collector is easily fitted into existing downpipes. (please observe the instructions for use).
 
A suitable solution for every rainwater downpipe!

There are rainwater collectors for every downpipe that can be fitted exactly to the nominal size (DN*) of your downpipe and therefore function without any problems.

For metal downpipes
DN 76, DN 80, DN 87, DN 100

For plastic downpipes
DN 70 with external diameter Ø 75 mm (2,95 inch),
DN 100 with external diameter Ø 110 mm (4,33 inch)

Adaptions for UK- an US-Sizes or other are available by request.

The rainwater collector is easily fitted into the existing downpipe. (please observe the instructions for use).

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* DN = nominal diameter, abbreviation for the nominal size of a pipe (= approximate internal diameter)

 
GRS