Model 730 triple spun steel black train horn 3.0 gallon US made air tank, , all steel construction, Cortec internally coated against corrosion. Manufactured to SAE J10 and FMVSS 121 standards 150 PSI rated system with 6450RC air compressor Direct fit mounting brackets with a spare tire delete horn mount 2017-21 F-250/F-350 - 2017-2019 F-450 Fit type: Vehicle Specific