10pcs Oxygen Pump Tracheal Check Valve Home Fish Tank Aquarium Non Return Check Valve Air Increasing Pump Accessories
Feature:
The function of the one-way valve prevents the backflow of water from damaging the front-end air pump or other product equipment. After adding the stop valve, the air pump can be higher or lower than the water surface.
Placed to prevent the danger of water returning when the air pump stops working.
Function description: Prevent the water in the fish tank from flowing back into the air pump and burn the air pump to avoid danger.
Reminder: Each outlet needs to be connected, and the double-head air pump needs 2 stop valves, and so on.

Specification:
Material: ABS
Color: Blue/Black S/Transparent L/Black L/Red L

Parameter:
Blue: 35*17mm Application: 4mm silicone water pipe

Black S: 43*13mm Application: 4mm silicone hose

Transparent L: 52*15mm Application: 4mm silicone water pipe

Black L: 52*15mm Application: 4mm silicone water pipe

Red L: 52*15mm Application: 4mm silicone water pipe

Note:
1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
2. Please allow 1-2cm measuring deviation due to manual measurement.