Best tire inflator for dually tires

I think this is the best inflator and accessories I’ve ever had. The compressor is auto-shutoff, meaning you can use closed air chucks just like a real compressor, and it will shutoff when the hose pressurizes to the cutoff pressure. The dually extension is very well designed, and is all I use to inflate my truck tires. It comes with enough hose to reach your trailer tires as well. Yeah, it’s not cheap. Buy once, cry once.

Viair 400P-RV



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