Click image to view full size image
Color Rubber High Pressure Air Hose Coil Reel
Air hose Size
Sizing Air Hose
When you are trying to figure out what hose size you need, or even why a 3/4" hose is well over an inch in diameter, just remember the acronymH.I.D..
The 'H' in H.I.D. stands for HOSE. The 'I.D." in HID stands for the hose "inner diameter".Hose size is measured by its inner diameter.
A 3/8" hose will have a hole in the center that is exactly 3/8" in diameter regardless of how the outer diameter of the hose varies. And it does, depending on the type of hose and the manufacturer.So, will all same size air hoses have the same outer diameter (O.D.)? Nope, they won't.
Different manufacturers offer air hose with varying wall thickness. Therefore, one 3/8" hose might be just under 1" in outer diameter, another might be a 1 1/4" outer diameter, yet in both cases the I.D. will still be 3/8", identifying this one as a 3/8" hose.
It is often the higher priced hose that has a larger O.D. due to more mass in the wall thickness or integrating reinforcement into the hose wall for greater burst strength.
Color Rubber High Pressure Air Hose Coil Reel
E-mail: 