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Air Gap


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The Air Gap prevents stormwater backflow from entering a rainwater tank,
by creating a physical air break on the outlet of the tank overflow and before the stormwater drainage system. The Air Gap also acts as visual inspection point on the overflow.

Each screen is made from mosquito proof stainless steel mesh with 0.955mm aperture

Installation Instructions

The Rain Harvesting Air Gap incorporates two 90mm Female sockets that glue directly to DN90mm pipe. Install the Air Gap to a vertical section of pipe after the overflow of the tank. To maximise performance, install the Air Gap a minimum of 300mm below the overflow outlet. Ensure the Air Gap is installed the right way up, NOTE instructions on product: 'Install this side facing up'. If installing the Air Gap to existing pipe work simply remove a 142mm section of pipe to allow fitment.


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