{"product_id":"durddrd14","title":"Duro Dyne® DDRD Series 35073 Pressure Relief Damper, 14 in, Steel, Galvanized, Round","description":"\u003cp\u003eDuro Dyne® Pressure Relief Damper, Series: DDRD, 14 in Size, 1300 cu-ft\/min at 1200 ft\/min, Steel, Galvanized, Round\u003c\/p\u003e\u003cp\u003eDuroZone Pressure Relief Dampers are used to relieve excess air pressure created when less than all the zones of a duct system are calling. They do this in a simple and reliable fashion based on barometric\/static pressure in the duct system. When pressure builds up in the duct system due to satisfied zones, the pressure opens the damper blade and \"bypasses\" to an unconditioned area or back to the return air duct. The pressure relief damper closes when the system is off or when all the zones are calling.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePlated steel counterbalance rod and weight\u003c\/li\u003e\n\u003cli\u003eSintered bronze oil impregnated bushings\u003c\/li\u003e\n\u003cli\u003eThumb screws for easy adjustment\u003c\/li\u003e\n\u003cli\u003eAbility to-mount counterbalance rod on either side\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eCFM Rating\u003c\/td\u003e\n\u003ctd\u003e1300 cu-ft\/min at 1200 ft\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShape\u003c\/td\u003e\n\u003ctd\u003eRound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eDDRD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eGalvanized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e14 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Duro Dyne®","offers":[{"title":"Default Title","offer_id":51320077287649,"sku":"DURDDRD14","price":373.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0451\/4017\/files\/UNI-161789.jpg?v=1794345463","url":"https:\/\/remsco.com\/products\/durddrd14","provider":"Remsco","version":"1.0","type":"link"}