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Color-Coding Explanation
Color-coding is used as a gas identifier worldwide for medical gas fittings and connections. The following color-coding chart is for your assistance.
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USA |
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ISO |
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| Carbon Dioxide |
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Grey |
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Grey |
| He-O2 |
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Brown and Green |
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Brown and White |
| Instrument Air |
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Red (USA Only) |
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| Medical Air |
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Yellow |
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Black and White |
| Nitrogen |
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Black |
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Black |
| Nitrous Oxide |
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Blue |
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Blue |
| O2-He |
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Green and Brown |
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White and Brown |
| Oxygen |
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Green |
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White |
| Vacuum (Suction) |
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White |
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Yellow |
| WAGD (Evac) |
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Purple |
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Purple |
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