Reinforced double layer standard air brake coils with ergonomic DURA-Grips Working length: 15' Leads: 1 x 12", 1 x 40" Male connection: NPT 1/2" dual end brass fittings Meets SAE J844 and DOT FMVSS 106 & Both lines are rated to -65F (-55C) Color-coded set: Includes both BLUE - Service and RED - Emergency coils Replaces: Tectran️ 17A15-40H, Tremec Sloan️ 451089N