expella 1SLD1200A Shadowline Diffuser Concealed Ceiling Grille Instructions
Discover how to install and use the 1SLD1200A Shadowline Diffuser Concealed Ceiling Grille. Follow step-by-step instructions and achieve optimal ventilation in your space. Designed for discreet placement, this internal ceiling grille is almost invisible, blending seamlessly with your ceiling or wall/ceiling junction.