Delta Flex UL Listed

Product Details

Delta-flex DF-FD5-RN is UL listed flexible duct according to UL 181 Class 1 standard. Also classified by Underwriters Laboratories INC, in accordance with ADC flexible duct performance and installation standards using ASTM C518. Delta-flex DF-FD5-RN is insulated flexible duct with outer jacket as reinforced metalized PET laminated over clear polyester, middle layer is of Good quality fiber glass insulation & inner core is double layer of ALU PET & clear polyester permanently bonded with flame retardant bonding adhesive with coated steel spring helix.