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About Measuring Fittings
Measure the threaded ends of your fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.
Color-Coded Identification Rings for Push-to-Connect Tube Fittings for Air

Color-code your lines by snapping these rings over the release ring on push-to-connect fittings.
Each | ||||||
|---|---|---|---|---|---|---|
| For Tube OD | Material | Choose a Color | 1-19 | 20-99 | 100-Up | |
| 1/8" | Nylon Plastic | Yellow | 5779K768 | 00000 | 00000 | 00000 |
| 5/32" | Nylon Plastic | 5779K792 | 000 | 000 | 000 | |
| 3/16" | Nylon Plastic | 5779K793 | 000 | 000 | 000 | |
| 1/4" | Nylon Plastic | 5779K794 | 000 | 000 | 000 | |
| 5/16" | Nylon Plastic | 5779K795 | 000 | 000 | 000 | |
| 3/8" | Nylon Plastic | 5779K796 | 000 | 000 | 000 | |
| 1/2" | Nylon Plastic | Yellow | 5779K775 | 000 | 000 | 000 |
| 6mm | Nylon Plastic | 5779K801 | 000 | 000 | 000 | |
| 10mm | Nylon Plastic | 5779K811 | 0000 | 000 | 000 | |
| 12mm | Nylon Plastic | 5779K821 | 0000 | 000 | 000 | |
Color-Coded Identification Rings for Low-Temperature
D.O.T. Push-to-Connect Tube Fittings for Air

Color-code your lines by snapping one of these rings over the release ring on low-temperature D.O.T. push-to-connect tube fittings. Often used in air brake lines for commercial trucks and trailers, they meet Department of Transportation FMVSS 571 safety standards.

























