Non-Return Valve Plastic for Aquarium Air Pump

Function
1. To prevent water backflow to damaging the front end of the pump or other products and equipment.
2. After the addition of the stop valve, the pump can be placed above or below the surface of the water to prevent the risk of water backflow when the pump is shut off.

Description
1. Used for oxygen pump to prevent water backflow to damage oxygen pump.
2. To prevent the water inside the tank from back into the pump to burn the air pump.
3. To avoid danger, it is an essential accessory for the air pump.

Reminder
Each outlet needs to connect a stop valve, a two-headed pump needs two stop valves, and so on.

Specification
1. Material: Plastic
2. Color: Blue
3. Weight: about 1g
4. Size:
Overall length: 36 mm / 1.42 in, the diameter of the middle circle: 8 mm / 0.31 in
Two ends: inner diameter:3 mm / 0.12 in, outer diameter: 4 mm / 0.16 in