5pcs 45mm One Way Non-Return Check Valve Aquarium Co2 System Air Pump Black AU

ITEM NAME:5pcs 45mm One Way Non-Return Check Valve Aquarium Co2 System Air Pump Black AU Product Description Description: 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.Great one way check valve for aquarium air pump. Included: 5x Check Valve. If item is defective after 3 months, you can still send it back to us. We will send you a new one after receiving the defective item.