Diffuser grille is to pull air from a room to return it to the heating or cooling system.-(DIFFUNY/YE) Generic DIFFUSER GRILL AIR SUPPLY 30X30 (INNER) 12X12-Generic-(DIFFUNY/YE)
Diffuser grille is to pull air from a room to return it to the heating or cooling system.-(DIFFUNY/YE) Generic DIFFUSER GRILL AIR SUPPLY 30X30 (INNER) 12X12-Generic-(DIFFUNY/YE)