Kwik Change Rubber Blow Gun Nozzle Tip. Features: 1/8" national pipe straight Compatible with Milton models S-168 and S-174 Not compliant This 1/8" NPS rubber blow gun tip is the perfect accessory to use with your Milton blow gun when used on or around delicate surfaces. Easily replaceable, this rubber tip is specifically designed to avoid marring of surfaces. This rubber tip is also ideal for blowing out air lines.