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First Flush Water Diverters

First Flush Water Diverters improve water quality and reduce tank maintenance by preventing the first flush of rainwater, which may contain roof contaminants, from entering the tank.

Choose a first flush diverter to suit your needs

Note: Water diverted should be a minimum of 20 litres per 100 square metres of roof area (or 0.2L per m2).

Shop for First Flush Water Diverters

Rain Harvesting Accessories

90mm Downpipe First Flush Water Diverter

Our Price $48.00

Rain Harvesting Accessories

100mm Downpipe First Flush Water Diverter

Our Price $67.00
Our Price $163.00
Our Price $550.00

Rain Harvesting Accessories

300mm In-Ground First Flush Water Diverter

Our Price $185.00
Our Price $195.00
Our Price $79.00
Our Price $89.00