Insect and Vermin Protection
Flap Valve
Flap valves fit to overflow and outlet pipes and open to let water out, then close to keep pests, vermin and stormwater from coming back in. Vented versions also let the pipe breathe while keeping mosquitoes out.
Sort by
Designed by Rain Harvesting™
Need a tailored system design?
Our specialists can design a complete Rain Harvesting™ system for your property or improve an existing one. You’ll receive a detailed report with everything you need to install and maintain it.
The Handbook
The ultimate guide for help and inspiration to start your rainwater harvesting journey today.