{"product_id":"dur128reldam","title":"Duro Dyne® DD 35063 Pressure Relief Damper, 12 x 8 in, Extruded Aluminum, Rectangular","description":"\u003cp\u003eDuro Dyne® Pressure Relief Damper, Series: DD, 12 x 8 in Size, 700 cu-ft\/min at 1200 ft\/min, Extruded Aluminum, Rectangular\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\u003eHardware and brackets for either flush or in-line-mounting\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\u003e700 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\u003eRectangular\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e12 x 8 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eExtruded Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eDD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Duro Dyne®","offers":[{"title":"Default Title","offer_id":67952228270394,"sku":"DUR128RELDAM","price":370.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0569\/5238\/9827\/files\/UNI-161853.jpg?v=1794262027","url":"https:\/\/nwfsupply.com\/products\/dur128reldam","provider":"NWF Supply","version":"1.0","type":"link"}