First Flush Screw Cap O-ring

This o-ring will suit either the white or transparent first flush end caps.

Easy Installation

Easy Installation

Just unscrew the end cap at the end of your First Flush Diverter to replace the o-ring.
SKU :
First Flush Screw Cap O-ring
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First Flush Calculator by Rain Harvesting

First Flush Calculator

Easily calculate how much water you need to divert and discover which First Flush Diverter is right for you.

Design Service

Improve your existing Rain Harvesting system or design a new one with the help of our experts and our free system design service.

Free Handbooks by Rain Harvesting

Rain Harvesting Handbook

A guide that will provide you with help and inspiration to start your rainwater harvesting journey today.

A sketch of mechanics about rain harvesting

Design Service

Improve your existing Rain Harvesting system or design a new one with the help of our experts and our free system design service.