Iwata Airbrush Replacement Part I-770-1 Spring guide Iwata from $8.44 $11.25 Qty. Add to Cart SKU: I-770-1 This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. The Iwata Airbrush Replacement Part I-770-1 Spring guide fits the Hi-Line CH, Revolution CR and Revolution BR airbrushes. Tweet