Milton S-168RUB KWIK-CHANGE Blow Gun Rubber Tip This 1/8 in NPS rubber blow gun Tip is part of the KWIK-CHANGE Universal Tip System Kit and the perfect accessory to use with your Milton blow gun when used on or around delicate surfaces. Easily replaceable, this versatile blow gun attachment is specifically designed to avoid marring of surfaces, be safer on skin and ideal for blowing out air lines.