RainCatcher RC

  • Separates rainwater to the rainwater barrel without filtration
  • For installation in downpipes
  • 10-year guarantee
  • Extremely low maintenance
  • Automatic overflow protection for the rainwater barrel
  • Rainwater for garden irrigation
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The downpipe stays clean

As with all WISY filters: Free flow of water is enshured, the cross section is not restricted at any point. There is no risk of blockage even during torrential rainfall events which may flush large quantities of debris through the downpipe. Even a tennis ball could fall unobstructed through the RainCatcher RC. It's hydraulic efficiency is excellent. In average rainfall, over 90% of the run-off rainwater will be collected.

Operating principle and applications

The RainCatcher RC is installed in the vertical rainwater downpipe. It diverts the rainwater to a garden barrel or storage tank. The special construction of the RainCatcher RC is designed to separate coarse materials like leaves directly through the downpipe to the soakaway or drain. The collected rainwater can be used for garden irrigation.


The housing of RainCatcher RC is made of UV-resistant polypropylene, suitable for tropical sunlight. The housing has an inlet diameter directly fitting for 110 mm round pipes. Smaller downpipes can be connected with an adapter.

Automatic overflow

Installed at the correct height, RainCatcher RC automatically functions as an overflow for the rainwater barrel. As soon as the rainwater barrel is full, it diverts any excess water to the storm drain or soakaway. There is no risk of overflow.

10 years guaranty

The components are manufactured using the latest production techniques and are required to undergo the most rigorous quality control to ensure trouble-free operation. In the unlikely occurrence that parts do prove defective, WISY will guarantee replacement for 10 years.

Item number

For downpipes with outer diameter 100 - 102 mm (or 314 - 320 mm circumference) white RC 0520
grey RC 0521
brown RC 0522
For downpipes with outer diameter 103 - 105 mm (or 323 - 330 mm circumference) white RC 0550
grey RC 0551
brown RC 0552
For downpipes with outer diameter 108 - 111 mm (or 339 - 349 mm circumference) white RC 0510
grey RC 0511
brown RC 0512