DENNERLE CO2 Check Valve (Non-Return Valve)

A high-quality non-return valve to stop water back-siphoning down the CO2 hose if the pressure drops.

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£19.99 tax incl.

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A non-return valve designed to prevent water "back-siphoning" from your aquarium in the event of a drop in COpressure.  A specially designed one-way membrane inside the valve allows CO2 to pass through but stops water flowing back down the hose into your cabinet!


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