ITEM NAME:10x Aquarium One Way Check Valve Non-Return Fish Tank Co2 System Air Pump Red Descriptio n Features: 100% brand new and high quality Great one way check valve for aquarium air pump. Durable and easy to install. Fit standard aquarium air pipe of 5mm inner diameter. Specification: Material: Plastic Color: As the pictures show Size: Approx. 2.17*0.59inch / 55*15mm (Length*Width) Package included: 10x  One Way Check Valve Note: Please allow little size error due to manual measurement. Honesty is gold for all! 10x Aquarium One Way Check Valve Non-Return Fish Tank Co2 System Air Pump Red
