The basics An airbrush is only a true Iwata when it contains genuine Iwata parts. To keep your airbrush operating at peak performance, make sure the model number on the side of your airbrush is listed below. FOR USE WITH:Hi-Line:HP-CHHigh Performance Plus:HP-CP/BCP The benefits Iwata Hi-Line and High Performance Plus nozzles are wrapped in a platinum alloy, creating a perfect seal to the paint passageways. Unlike conventional all-brass nozzles, they are more durable and resist damage from harsh chemicals. The bottom line Iwata parts are precision crafted on the industry's most sophisticated machinery using the finest materials for consistent quality and performance. Every batch, every time.