Design D0110DOW, D0120DOW, D0110GOW, D0120GOW are "away from wall or floor" integral sleeve dynamic curtain sort fire dampers. Product D0110GOW and D0120GOW are created for provide or return ducts that terminate in a grille or sign up. Product D0110DOW and D0120DOW are made for by means of penetrations (ductwork linked to https://spencerrjaqe.goabroadblog.com/36052353/considerations-to-know-about-heavy-duty-stainless-steel-damper-manufacturers