Check Valves for Aquariums, Transparent, 10 Pack

Description

• Use a paperclip to connect input to output when the socket is inside.
• Compatible with standard aquarium air pumps; not for CO2 systems.
• Prevents aquarium water from siphoning during power outages.
• Includes 10 check valves.
• Diameter: 4 mm; Size: 5.5 cm x 1.5 cm (Length x Max. Diameter)

These transparent check valves are designed for aquariums, ensuring that water does not flow back during power outages. They are suitable for standard aquarium air pumps and come in a pack of 10.

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