https://www.greuter-leuchten.ch/en/end-cover-high-diffuse-luminaire-profile-60x75mm.html
End Cap Diffuse High Luminaire Profile 60x75mm | Greuter Leuchten AG
Inserted end cap diffuse made of PMMA for high covers with 60x75mm Luminaire Profile
end capdiffusehighluminaireprofile