90mm Downpipe First Flush Water Diverter (Rain Harvesting)

Rain Harvesting's 90mm Downpipe First Flush Water Diverter (WDDP01) improves water quality and reduce tank maintenance by preventing the first flush of water, which may contain roof contaminants, from entering the tank. They help ensure cleaner water is  available for use, which protects rainwater pumps and internal household appliances such as clothes washing machines, toilets, hot water systems, etc.

Price $50.00 GST incl.

  • Prevents contaminated water entering your rainwater tank.
  • Easy installation, just add pipe and glue.
  • Suits 90mm downpipes. (click for 100mm version)
Need More Information? Download the manufacturer Downpipe First Flush Diverter Install and Specification Guide (PDF 108 KB).

Temporarily Out of Stock - Available for Pre-Order This item is currently on backorder and expected to arrive late April 2026. You can still place your order now and we'll ship it to you as soon as new stock arrives.

Available on backorder

FREE DELIVERY over $349 (applies to Rain Harvesting Accessories and Gutter Mesh)
SKU: RH-WDDP01| Availability: 
On Backorder This product is on backorder, but can still be ordered for delivery once back in stock.
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