Sonolight AD-L thermal-insulated ducts protect air against heat loss
inside the ventilation ductwork. The perforation improves the sound-insulating
performance of this duct model.
The product is based on the standard Aluduct and includes a 25 or 50 mm thick insulation
with aluminium polyester cladding. It is generally intended for building connections for
plenum boxes, air valves, or high-air-flow heat recovery ventilation systems.