Thor's Lightning Air Systems Air Compressor Adapters are essential accessories for connecting certain air compressor models to our air systems. If your compressor is equipped with male I/M (industrial Milton) fittings, like the Viair 400P and Viair 450P, you'll need a female I/M adapter to allow our air system with standard I/M fittings to be connected and used. These adapters bridge the compatibility gap, ensuring seamless integration and optimal performance when using our air systems with specific compressor models.