Item Description:

• 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: 45mm x 15mm x 4mm (approx)
• Color: Red
• Package included: 
• 10x One way check valve air pumps

Item Pictures: