❆❆ 100% Brand new and high quality
Great one way check valve for aquarium air pump
Protect you air pump by preventing aquarium water from back siphoning during a power outage.
Small and compact
Made of durable plastic
It's easy to install
Compatible with standard aquarium air pipe of 4mm inner diameter
Full Length: Approx.45mm x 15mm x4mm (Length*Diameter*Tubule diameter)
Color: Black
Included:
5x Check Valve