10PCS Aquarium Air Check Valve, One Way Non-Return Check Valve for Aquarium Air Pump, for 3/16 Inch Airline Tubing, Fish Tank Accessories (Red)
?Small & Light? Size: 2.1" L x 0.55" W; Diameter of air holes: 0.12"; Weight: 0.098 oz. Standard ID airline tubing: 0.19". Add little weight to your hose for smooth airflow.
?Function?With our non-return check valves, air pump can be placed in any position, protect your air pump by prevent water from back siphoning during a power outage. NOTE: You need to pay attention to the direction of the air outlet when installing.
?Easy to Install?Cut off the hose then insert the valve into tubing between your air pump to prevent water returning down the air line.
?Detachable Design?Easy to unscrew, clean the valve regularly to ensure normal use.
?Sturdy & Quiet?Made of reliable plastic which can be tightly connected to the hose without air leak, durable and long-lasing to use without making noise.
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