Sera CO₂ Non-Return Valve – Safety Check Valve for Aquarium CO₂ and Air Systems (2 pcs)
Description
The Sera CO₂ Non-Return Valve is a high-quality safety accessory designed to prevent water backflow into your CO₂ system or air pump.
Made from durable plastic and engineered with precision, this valve ensures reliable one-way flow — protecting sensitive equipment like CO₂ regulators, diffusers, and air pumps from potential damage caused by back-siphoning.
Each pack includes two precision non-return valves, making it an excellent choice for both CO₂ and air applications in aquariums.
Key Features:
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Prevents water backflow into CO₂ regulators or air pumps
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Essential for pressurised CO₂ systems and air lines
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Durable, high-quality construction for long-term reliability
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Compact and lightweight – fits neatly in any setup
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Easy to install – simply connect inline with standard 4/6 mm tubing
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Suitable for freshwater and marine aquariums
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Pack contains 2 non-return valves
Usage Tips:
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Install the valve vertically with the arrow pointing towards the aquarium to ensure correct gas flow direction.
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Use one valve for your CO₂ line and one for your air pump to maximise protection.
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Check occasionally for dust or salt buildup and replace when needed.
Delivery & returns
Free delivery across Malta on orders over €35. Orders are prepared at our shop in Ħ'Attard. See our shipping and refund policies for timings and conditions.