3M™ Speedglas™ Welding Filter 9100XXi Upgrade Kit with 3M™ Speedglas™ Natural Colour Technology and special silver front panel enabling outside control functions (grinding/memory) when used with 9100/9100Air/9100-QR welding helmets.

• Special silver front panel to access outside control functions (grinding/memory) when used with 9100/9100Air/9100-QR welding helmets
• Variable dark shades 5, 8 and 9-13
• Light shade 3
• Delay function sets the dark-to-light opening time
• Switching time (light-dark) of 0.1 ms