DOOR TRANSFER GRILLE Door Transfer Grille is used to provide air transfer by taking advantage of the pressure difference between adjacent spaces. Description Description Decorative and aesthetic appearance Manufacturing from aluminum profile Double sided structure Low pressure loss Related products Air Handling UnitsHeat Recovery Unit - CommercialUnit SeriesHEAT RECOVERY UNIT (Commercial) Air Handling UnitsFAN SERIESEX-PROOF RECTANGULAR DUCT TYPE FAN Air Handling UnitsFAN SERIESEX-PROOF CIRCULAR DUCT TYPE FAN