3M Speedglas 9100xxi welding filter & sliver front upgrade kit.
- Upgrade your 9100XX to the 9100XXi
- Silver front allows use of added functionality.
- NEW:Natural colour & contrast.
- NEW: Faster switching between welding & grinding, at the touch of a external button.
- NEW: Memory modes. Pushing an external button activates one of two preset welding modes.
- NEW: Instant On. Allows you return to the last welding mode when you pick up the helmet.
- The 9100 xxi lens size is 73 x 107mm