S97014185 duct damper connector compatible with broan nutone heating 4" 97014185 97014185 S97003932 97003932 757SN MS120L 763N 684NT 676NT 679FLT 680FL 680FLT 683L 740WH. The broan duct adapter allows air to be vented through the bathroom fan to the vents in the roof, which can be secured using self-tapping screws. S97014185 is like a clapper valve, closed to prevent outside air from entering, it only allows air to be vented. Duct adapter is made of plastic to avoid rust, we have strengthened the problem of anti-aging, corrosion, and avoided the trouble of frequent replacement. Fit for Broan S97014185 damper/duct connector is black. Cleaning the ventilation ducts can help you change the air and keep the smell fresh in your room Fit for Broan S97014185 Damper/Duct Connector, 4"
for broan duct adapter
S97014185 duct damper connector
Took another customers advice and taped a dime to the door inside to keep it a bit more stiff not allowing it to open and close so easily.