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                | Application 
                      Product FeaturesEconomical adapter designed to provide a transition from a square or rectangular neck to a round neck for flexible or round rigid duct connectionsField installed onto grilles, registers, or diffusers 
                      OptionsAvailable in full range of sizes from 4" to 24"Designed so square and round neck dimensions can be the same, i.e. a 9"ø on 9" x 9" squareCoated steel, welded construction  
                      Aluminum or stainless steel constructionModel SSA for square to square adapter |  |  |  |  |