Design D1201-OW and D1201-DOW are "out of wall" superior performance dynamic fireplace dampers. They supply high quality efficiency plus a reduced pressure fall well suited to the majority of business programs. One of a kind, inter-locking double skin blade design gets rid of combustible seals and offers flame security beneath https://heavydutystainlesssteelda70122.luwebs.com/37838687/5-easy-facts-about-dampers-for-industrial-sector-described