ITEM DESCRIPTION

5 x Aquarium One Way Air Check Valves for Standard 4mm Internal Diameter Aquarium Airline

This listing is for 5 x one way air check valves, suitable for standard 4mm internal diameter aquarium airline.

Protect you air pump by preventing aquarium water from back siphoning during a power outage.

Made of high quality clear plastic, these check valves are durable and non-toxic.

This is a very important accessory for air pumps.

The items are new, and are suitable for marine and

tropical aquariums / ponds.

Item condition: New

Package contents: 5 x Clear One-Way Check Valves

Please do look at my other listings for other aquarium connectors