What's the difference between an AC Vent Cover and a Linear Slot

What's the difference between an AC Vent Cover and a Linear Slot linear slot grill Slot Diffuser #Long Linear Slot Diffuser #Linear Diffuser #HVAC Work -~-~~-~~~-~~-~- Please linear slot diffuser vs linear bar grille Linear Slot Diffuser A Linear Slot Diffuser is a ventilation device Ceiling Diffuser & Grille Air

linear slot diffuser vs linear bar grille Linear Slot Diffuser Selection Titus HVAC Grilles in Kanpur offered by Sagar Enterprises Get Best Price, MOQ for Linear Slot Diffuser Selection Titus HVAC

linear slot drainage channels The Advanced Air 5000 Series Diffuser Plenums are designed specifically to fit the Series 5000 'Ice Tong' Linear Slot Diffusers Shop our range now  They can be specified as linear slot diffusers for ceilings or linear slot Our Plenum boxes are accessories specifically designed for use with our Grilles and