| D.O.T. For | Copper Tube Air Brake Fittings | Nylon Tube Air Brake Fittings | Air Brake Hose Ends Fittings |
| Materials | CA360, CA345, CA377 | CA360, CA345, CA377 | CA360, CA345, CA377 |
| Vibration Resistance | Excellent | Excellent | Excellent |
| Working Pressure | 150 PSI Maximum based on tubing size ALWAYS consult tubing specifications | 150 PSI Maximum based on tubing size ALWAYS consult tubing specifications | 225 PSI Maximum based on hose size ALWAYS consult hose specifications |
| Conformance | Meets requirements of SAE and DOT as indicated by configuration | Meets requirements of SAE and DOT as indicated by configuration | Meets specifications of DOT FMV SS571 when used with SAE J1402 air brake hose |
| Applications | Air brake systems on heavy trucks and trailers that are plumbed with copper tubing | Air brake systems on heavy trucks and trailers that are plumbed with nylon tubing. ng must be able to be flared. | Air brake systems on heavy trucks and trailers that are plumbed with SAE J1402 air brake hose |
| Temperature Range | 40 to +200�F | -40 to +200�F | -50 to +212�F |
| -40 to +93�C | -40 to +93�C | -45 to +100�C |