10 x One Way Check Valve Co2 Aquarium Air Pump Airline

ITEM NAME:10 x One Way Check Valve Co2 Aquarium Air Pump Airline K1P7 10 x One Way Check Valve Co2 Aquarium Air Pump Airline K1P7 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. Material: Plastic Color: white，red Size: Approx. 2.17*0.59inch / 55*15mm (Length*Width) Package included: 10 x One Way Check Valve Note:Light？shooting？and？different？displays？may？cause？the？color？of？the？item？in？the？picture？a？little？different？from？the？real？thing. The？measurement？allowed？error？is？+/-1-3cm.