Spec Sheet Ductmate’s F1 Hi-Temp sandwich access door meets NPFA96 standards pertaining to grease duct and is the most common grease duct access door used unless the job specifically calls for a UL listed door or one that has to be welded in. Its ceramic fiber gasket allows its use with temperatures up to 1,000°F for the F1 door. Item Code: DMHI106F1 10″ x 6″ 1000 Degree Hi Temp Access Doors For Flat Duct (10/box) DMHI128F1 12″ x 8″ 1000 Degree Hi Temp Access Doors for Flat Duct (10/box) DMHI1814F1 18″ x 14″ 1000 Degree Hi Temp Access Door For Flat Duct
