Hi, just registered to post a reply. I recently had the same doubt. I wanted to buy the same airbrush, and on ebay was half the price of chicagoairbrushsuply.com. If you check the IWATA Japan website, you will see thethis airbush listed as a 0.3mm nozzle. I bougth mine from ebay, and in the box also says its 0.3mm. The box has a holographic Iwata logo, proof of authenticity. After a careful spection, i can say without doubt thats an original product. So, my conlusion is that this particular model is sold as 0.3mm in Japan, but in the USA is listed as 0.35mm?