The Profoto 75mm Glass Cover Plus (300k Clear) has been made thicker, more robust and safe to work with light heads. The Glass cover is helpful to spread light evenly all around and protects the flash tube against any accidental damage.
Profoto 75mm Glass Cover Plus Features
Heavy duty glass cover in 2.8mm thick Pyrex glass
Clear glass for a harder, crisper light effect
Fits as accessory on all Pro and Acute heads with up to 250W model light lamp