Flap Valves

Make sure that your rainwater tank can handle high water flows and stays oxygenated.

Effectively secure your rainwater system by managing overflowing water and improving ventilation through our range of tank overflows, pipe screens and vent cowls.

All our overflows can also be paired with mosquito proof screens or flap valves, and some can be used to increase your tank’s rainwater storage capacity.

Flanged Tank Overflow – Corro Tank (Straight Wall)

A flanged overflow fitting for use with corrugated tanks with straight walls.

New

Mozzie Stoppas High Flow Anaconda w/ Removable Screen

Keep mosquitoes out of your tank and maximise the flow rate through your overflow with the highest performing Mozzie Stoppa.

New

Mozzie Stoppas w/ Removable Screen

The easiest way to prevent mosquitoes and pests from entering your tank is with this removable mesh cartridge.

Air Gap

Prevent stormwater backflow from entering your tank - ensuring your water supply is not contaminated.

Vent Cowls Weatherproof

Improve ventilation and promote more efficient water flow in your tank or other pipework.

Vent Cowls

Improve ventilation and promote more efficient water flow in your tank or other pipework.

Flap Valves w/ Vented Screens

Keep mosquitoes, frogs and other pests out of your pipework while allowing water to flow out unimpeded with this plastic flap valve.

Flap Valve Non-Vented

Keep mosquitoes, frogs and other pests out of your pipework while allowing water to flow out unimpeded with this plastic flap valve.

Kit

Flanged Tank Overflow Kit w/ Removable Screen Mozzie Stoppa

An all inclusive, flanged overflow kit for use with flat wall tanks. Keep out pests with mosquito proof screen which has a removable screen for easy maintenance.

Kit

Flanged Tank Overflow Kit High Volume w/ Removable Screen Mozzie Stoppa

This all-inclusive high overflow kit allows you to increase the volume of water you can store in your tank and keeps out pests with mosquito proof screen which has a removable screen for easy maintenance.

Kit

Flanged Tank Overflow Kit High Volume w/ Mozzie Stoppa Hinged

This all-inclusive high overflow kit allows you to increase the volume of water you can store in your tank and keeps out pests with an easily-maintained mosquito proof screen.

Kit

Flanged Tank Overflow Kits

An all inclusive, flanged overflow kit for use with flat wall tanks. Keep out mosquitoes and keep your water flowing freely.

Kit

Flanged Tank Overflow Kit High Volume

Keep mosquitoes out of your tank and increase the volume of water you can store with this all-inclusive high overflow kit.

Kit

Flanged Tank Overflow Kit Extra High Volume

Keep mosquitoes out of your tank and increase the volume of water you can store with this all-inclusive extra high overflow kit.

Mozzie Stoppas Hinged Screen

Keep mosquitoes and other pests out of your tank with this easily maintained, spring-loaded, mosquito-proof screen.

Mozzie Stoppa Fixed Screen

The original solution to preventing mosquitoes from entering your tank.

Flanged Tank Overflow – Corro Tank

A flanged overflow fitting for use with corrugated tanks.

Flanged Tank Overflow

A flanged overflow fitting for use with flat wall tanks.

Flanged Tank Overflow High Volume

Increase the volume of water you can store inside your tank with this high level overflow.

Flanged Tank Overflow Extra High Volume

Increase the volume of water you can store inside your tank with this extra high overflow.

True 90° Tank Overflow Bend

True 90° bends, designed especially to position pipework perfectly perpendicular or parallel to adjoining pipes and infrustructure.

Overflow Gaskets

Connect your Rain Harvesting overflow to your tank easily with a matching gasket.

Flanged Tank Overflow – Corro Tank (Straight Wall)

A flanged overflow fitting for use with corrugated tanks with straight walls.

New

Mozzie Stoppas High Flow Anaconda w/ Removable Screen

Keep mosquitoes out of your tank and maximise the flow rate through your overflow with the highest performing Mozzie Stoppa.

New

Mozzie Stoppas w/ Removable Screen

The easiest way to prevent mosquitoes and pests from entering your tank is with this removable mesh cartridge.

Air Gap

Prevent stormwater backflow from entering your tank - ensuring your water supply is not contaminated.

Vent Cowls Weatherproof

Improve ventilation and promote more efficient water flow in your tank or other pipework.

Vent Cowls

Improve ventilation and promote more efficient water flow in your tank or other pipework.

Flap Valves w/ Vented Screens

Keep mosquitoes, frogs and other pests out of your pipework while allowing water to flow out unimpeded with this plastic flap valve.

Flap Valve Non-Vented

Keep mosquitoes, frogs and other pests out of your pipework while allowing water to flow out unimpeded with this plastic flap valve.

Kit

Flanged Tank Overflow Kit w/ Removable Screen Mozzie Stoppa

An all inclusive, flanged overflow kit for use with flat wall tanks. Keep out pests with mosquito proof screen which has a removable screen for easy maintenance.

Kit

Flanged Tank Overflow Kit High Volume w/ Removable Screen Mozzie Stoppa

Kit

Flanged Tank Overflow Kit High Volume w/ Mozzie Stoppa Hinged

This all-inclusive high overflow kit allows you to increase the volume of water you can store in your tank and keeps out pests with an easily-maintained mosquito proof screen.

Kit

Flanged Tank Overflow Kits

An all inclusive, flanged overflow kit for use with flat wall tanks. Keep out mosquitoes and keep your water flowing freely.

Kit

Flanged Tank Overflow Kit High Volume

Keep mosquitoes out of your tank and increase the volume of water you can store with this all-inclusive high overflow kit.

Kit

Flanged Tank Overflow Kit Extra High Volume

Keep mosquitoes out of your tank and increase the volume of water you can store with this all-inclusive extra high overflow kit.

Mozzie Stoppas Hinged Screen

Keep mosquitoes and other pests out of your tank with this easily maintained, spring-loaded, mosquito-proof screen.

Mozzie Stoppa Fixed Screen

The original solution to preventing mosquitoes from entering your tank.

Flanged Tank Overflow – Corro Tank

A flanged overflow fitting for use with corrugated tanks.

Flanged Tank Overflow

A flanged overflow fitting for use with flat wall tanks.

Flanged Tank Overflow High Volume

Increase the volume of water you can store inside your tank with this high level overflow.

Flanged Tank Overflow Extra High Volume

Increase the volume of water you can store inside your tank with this extra high overflow.

True 90° Tank Overflow Bend

True 90° bends, designed especially to position pipework perfectly perpendicular or parallel to adjoining pipes and infrustructure.

Overflow Gaskets

Connect your Rain Harvesting overflow to your tank easily with a matching gasket.

Mozzie Stoppa Pipe Screens

Effectively secure your rainwater system by managing overflowing water and improving ventilation through our range of tank overflows, pipe screens and vent cowls.

All our overflows can also be paired with mosquito proof screens or flap valves, and some can be used to increase your tank’s rainwater storage capacity.

New

Mozzie Stoppas High Flow Anaconda w/ Removable Screen

Keep mosquitoes out of your tank and maximise the flow rate through your overflow with the highest performing Mozzie Stoppa.

New

Mozzie Stoppas w/ Removable Screen

The easiest way to prevent mosquitoes and pests from entering your tank is with this removable mesh cartridge.

Mozzie Stoppas Hinged Screen

Keep mosquitoes and other pests out of your tank with this easily maintained, spring-loaded, mosquito-proof screen.

Mozzie Stoppa Fixed Screen

The original solution to preventing mosquitoes from entering your tank.

Tank Overflow Kits

Effectively secure your rainwater system by managing overflowing water and improving ventilation through our range of tank overflows, pipe screens and vent cowls.

All our overflows can also be paired with mosquito proof screens or flap valves, and some can be used to increase your tank’s rainwater storage capacity.

Kit

Flanged Tank Overflow Kit w/ Removable Screen Mozzie Stoppa

An all inclusive, flanged overflow kit for use with flat wall tanks. Keep out pests with mosquito proof screen which has a removable screen for easy maintenance.

Kit

Flanged Tank Overflow Kit High Volume w/ Removable Screen Mozzie Stoppa

Kit

Flanged Tank Overflow Kit High Volume w/ Mozzie Stoppa Hinged

This all-inclusive high overflow kit allows you to increase the volume of water you can store in your tank and keeps out pests with an easily-maintained mosquito proof screen.

Kit

Flanged Tank Overflow Kits

An all inclusive, flanged overflow kit for use with flat wall tanks. Keep out mosquitoes and keep your water flowing freely.

Kit

Flanged Tank Overflow Kit High Volume

Keep mosquitoes out of your tank and increase the volume of water you can store with this all-inclusive high overflow kit.

Kit

Flanged Tank Overflow Kit Extra High Volume

Keep mosquitoes out of your tank and increase the volume of water you can store with this all-inclusive extra high overflow kit.

Flap Valves

Effectively secure your rainwater system by managing overflowing water and improving ventilation through our range of tank overflows, pipe screens and vent cowls.

All our overflows can also be paired with mosquito proof screens or flap valves, and some can be used to increase your tank’s rainwater storage capacity.

Flap Valves w/ Vented Screens

Keep mosquitoes, frogs and other pests out of your pipework while allowing water to flow out unimpeded with this plastic flap valve.

Flap Valve Non-Vented

Keep mosquitoes, frogs and other pests out of your pipework while allowing water to flow out unimpeded with this plastic flap valve.

Tank Overflows

Effectively secure your rainwater system by managing overflowing water and improving ventilation through our range of tank overflows, pipe screens and vent cowls.

All our overflows can also be paired with mosquito proof screens or flap valves, and some can be used to increase your tank’s rainwater storage capacity.

Flanged Tank Overflow – Corro Tank (Straight Wall)

A flanged overflow fitting for use with corrugated tanks with straight walls.

Flanged Tank Overflow – Corro Tank

A flanged overflow fitting for use with corrugated tanks.

Flanged Tank Overflow

A flanged overflow fitting for use with flat wall tanks.

Flanged Tank Overflow High Volume

Increase the volume of water you can store inside your tank with this high level overflow.

Flanged Tank Overflow Extra High Volume

Increase the volume of water you can store inside your tank with this extra high overflow.

True 90° Tank Overflow Bend

True 90° bends, designed especially to position pipework perfectly perpendicular or parallel to adjoining pipes and infrustructure.

Overflow Gaskets

Connect your Rain Harvesting overflow to your tank easily with a matching gasket.

Vent Cowls

Effectively secure your rainwater system by managing overflowing water and improving ventilation through our range of tank overflows, pipe screens and vent cowls.

All our overflows can also be paired with mosquito proof screens or flap valves, and some can be used to increase your tank’s rainwater storage capacity.

Vent Cowls Weatherproof

Improve ventilation and promote more efficient water flow in your tank or other pipework.

Vent Cowls

Improve ventilation and promote more efficient water flow in your tank or other pipework.

Pipe Screens, Tank Overflows and Vent Cowl Accessories

Effectively secure your rainwater system by managing overflowing water and improving ventilation through our range of tank overflows, pipe screens and vent cowls.

All our overflows can also be paired with mosquito proof screens or flap valves, and some can be used to increase your tank’s rainwater storage capacity.

Air Gaps

Effectively secure your rainwater system by managing overflowing water and improving ventilation through our range of tank overflows, pipe screens and vent cowls.

All our overflows can also be paired with mosquito proof screens or flap valves, and some can be used to increase your tank’s rainwater storage capacity.

Air Gap

Prevent stormwater backflow from entering your tank - ensuring your water supply is not contaminated.

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View the full product range from our home base in Australia.

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Rain Harvesting Handbook

Download yours today

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

Get started now

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