This protective window shields the mirrors and optics of your Glowforge from harmful dust and dirt. This silver-ringed orange window screws into the silver box on the far left side of your Glowforge.
Glowforge can take several weeks before they send replacement parts. We send out all our parts in 1 or 2 days and offer multiple shipping options including UPS overnight so you can get your machine back up and running as soon as possible.
Official Glowforge OEM part.
 
GF-ASM-00118-XP