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Linear Slot Diffusers - Miami linear slot grill Slot Diffuser - Diffuser Only - 1 Slot linear slot diffuser vs linear bar grille 37 Linear Slot Diffuser Air Conditioning Grille - 2 Slot - AC Vent Cover

linear slot diffuser Grille, Grill, AC Vent Cover or sometimes just Vent A Diffuser is Linear Slot Diffuser looks linear, long and skinny See below