25x Aquarium Check Valves Non-Return Air Line Tubing

Description

25x Aquarium Check Valves Non-Return Air Line Tubing
Description:
25 Total Pieces.
Comes in black color.
Non-Return check valves prevent water from backing up into your air pump from power outages or air pump failure.
Long lasting and durable.
Fits standard aquarium air line tubing.
View our above picture for easy assemble.
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