Until recently, Item 74531 Spray Perform fundamental Airbrush might just be used in combination with products 74515 HG Air Compressor Revo and 74520 Spray-Work fundamental Air Compressor w/Airbrush. But this brand-new connector joint converts the screw thread size to PF-1/8-28 (Type S), now to be utilized with Item 74533 Spray-Work Compact Air Compressor or other manufacturers' atmosphere compressors.