Which diffuser do you need?

Linear Diffusers & Bar Grilles linear diffuser vs slot diffuser Aluminum Linear Ceiling Diffuser, Slot, Shape: Rectangle · Powder Coated Linear Slot Diffuser, For Commercial, Shape: Rectangle · Yashica Galvanized Iron Linear linear slot diffuser installation HVAC linear slot diffusers are a type of ventilation system used to distribute conditioned air

linear slot grille Linear slot diffusers and I've seen people recommend against stuff like Aria Vents for supply and returns because of stricter airflow