harder and steenbeck airvalve spare kitThis is the Harder & Steenbeck Airvalve Spare Kit [702327]. This is a genuine Harder & Steenbeck replacement part. Made in Germany. Compatibility: Needles are specific to the airbrush model and nozzle size. For example, H&S airbrushes have different needles for the Colani models and the Evolution, Infinity, and Ultra models. They also come in various sizes, such as 0. 2mm, 0. 4mm, and 0. 6mm. The needle size must match the nozzle and air cap of the