transfer grille

transfer grille

[′tranz·fər ‚gril] (engineering) In an air-conditioning system, a grille that permits air to flow from one space to another; may be one of a pair if installed on opposite sides of a wall or door.

transfer grille

In an air-conditioning system, a grille which permits air to flow from one space to another; may be one of a pair, installed on opposite sides of a wall, door, etc.