Versions 0110DOW, 0120DOW, 0110GOW and 0120GOW are "away from wall or flooring" integral sleeve static curtain sort hearth dampers.  Product 0110GOW and 0120GOW are specifically suitable for provide or return ducts that terminate at a grille or sign up. Product 0110DOW and 0120DOW are suitable for as a result of https://dampers-for-industrial-se80123.eedblog.com/37044391/5-simple-statements-about-dampers-for-industrial-sector-explained