The Beverage-Air 203-140A capillary tube is a replacement part that is suitable for use with Beverage-Air KF36 reach-in freezers to meter the flow of refrigerant. The capillary tube has an inside diameter (ID) of 0.036" and an outside diameter (OD) of 0.086" and measures 72" long. This replacement part is approved by the original equipment manufacturer (OEM).