Rain Harvesting
First Flush Screw Cap O'Ring
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O ring to suit the screw cap at the base of the first flush water diverter.
Suits 90mm, 100mm, Inground, Post/Wall and Delta First Flush Diverters, Advanced Release Valve and Wet/Dry Valve.


Download your Wi-Fi Adaptor Installation Guide
See how simple it is to get connected. Designed for a quick plug-and-play setup, our Wi-Fi Adaptor connects your system to your local network in minutes. Preview the guide now to see the easy installation steps and check your compatibility before your items arrive.

Watch our videos
We regularly update our YouTube channel with videos and fresh content to educate you on how to set up and maintain your Rain Harvesting system.