Badger Air-Brush Company Stock Number R-042 Ultra Fine Spray Regulator for Renegade Series. The spray regulator is the front of the airbrush and is designed to guide air over the tip of the needle to ensure absolutely precise spray performance and proper amortization of paint and siphoning. The spray regulator is made of a precision manufactured durable metal alloy. The ultra fine spray regulator must be compatible with the airbrush tip and needle for airbrushing accuracy. Badger Air-Brush parts are proudly made in America.