DAH 450 True Fit Duct Doors

The Linhdor DAR 400 and DAH 450 Duct Access Doors are designed to provide efficient and secure service access to critical areas in rectangular metal ducts for a wide range of commercial, industrial, institutional and residential applications. Offering economical, galvanized steel construction, our duct access doors are an excellent choice for locations where HVAC access is required. Perfect for both new and retrofit building projects, our duct doors enable easy access to dampers and other components in heating, air conditioning and other building ductwork.