Rain Harvesting 90mm Air Gap | Prevent Stormwater Backflow & Protect Rainwater Tank Australia

During heavy rain or local stormwater network blockages, water can flow back up your overflow pipes directly toward your rainwater tank — contaminating your stored water supply. The Rain Harvesting 90mm Air Gap stops this from happening with a simple but highly effective physical solution.

The Air Gap’s open mouth design creates a complete break in the overflow line. If backflow occurs, water exits through the opening rather than continuing up toward your tank — keeping your stored rainwater clean and uncontaminated regardless of what happens in the stormwater network.

The built-in stainless steel mesh screen prevents mosquitoes and pests from entering through the open mouth, while the easily removable screens make occasional maintenance quick and hassle-free.

Key Highlights:
– Prevents stormwater backflow from entering and contaminating your rainwater tank
– Open mouth design creates a physical break in the overflow line
– Backflow water exits through the opening — never reaches your tank
– Stainless steel mesh screen blocks mosquitoes and pests
– Easily removable screens for quick, simple maintenance
– White UPVC construction — durable in outdoor environments
– Designed for 90mm overflow pipe systems

Technical Specifications:
– Model Name: 90mm Air Gap
– Model Number: TAAG01
– Colour: White
– Material: UPVC
– Pipe Size: 90mm
– Screen Material: Stainless Steel Mesh
– Screen Removal: Yes — easily removable