Heavy/ Light Weight Single Deflection Grilles are commonly used for both supply and return air grille in side walls and ceiling. These Single Deflection Grilles are generally used as return air as they do not require an opposed blade as the return air is not normally room balanced. These Single Deflection Grilles are available in both heavy and light forms. Heavy/ Light Weight Single Deflection Grilles can be availed in two kind of flows such as normal flow with a pitch of 11mm between louvers and high flow with a pitch of 14mm between louvers.
