YuCool Aquarium Check Valve,One Way Non Return Valve for Aquarium Air Pump, Check Valve for 3/16 Inch Airline Tubing, Fish Tank Accessories,35pcs (Red)

KWD 4

All electronics ship with US style plugs. You may need a voltage converter or a plug adapter.

Reliable Materials & Size:Made of high quality plastic materials,not easy to aging,sturdy and durables. Size: 2.1" L x 0.55" W; Diameter of air holes: 0.16"
Value Package:Include 35pcs check valves and approx 2 metres Long airline tubing. Suitable for standard 3/16 inch airline hoses and all common aquarium air pumps, but NOT suitable for CO2 system.
Function:Prevent the aquarium water from back siphoning into the air pump during a power outage or pump pause,which will protect your air pump.
Easy Maintenance:When it gets clogged inside and restricts air flow,Please poke it with a toothpick or slim stick from input side to output side.
Connection Method:The air check valve has a small arrow on the body, the head of the arrow is the output, connect to the tube of the air stone side,and the end of the arrow is the input,connects to the hose of the air pump side.

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