Pawfly 1.6 Inch Air Stone Bubble for Aquarium Fish Tank Hydroponics Pump Ceramic Airstones Diffuser, Pack of 4

Pawfly Aquarium Check Valves for Common Air Pumps Black Plastic 1-Way Non-Return Valves Pump Protectors for Standard 3/16 Inch Airline Tubing Fish Tank Accessories for Aeration Setup, 6 Pack

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Place in your airline tubing between your air pump and aquarium water to prevent water returning down the airline.

How to clean
Unscrew and open up check valve, pinch the rubber boot inside valve to make sure small slit is open. Otherwise no air to tank.

Be attention:
Please DO NOT use them with CO2 system.

Made of durable clear plastic. Package Weight: 25 g/1oz

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Pawfly Aquarium Check Valves for Common Air Pumps Black Plastic 1-Way Non-Return Valves Pump Protectors for Standard 3/16 Inch Airline Tubing Fish Tank Accessories for Aeration Setup, 6 Pack

Product Review