6” Insulated Flexible Duct – 8 FT Noise Reducer Hose, Insulated Duct for
Variety of Applications： insulated flexible duct is suitable for HVAC system. Anti-Corrosion & Durable：Thick layer of PVC&2 layers of Aluminum on this flexible ducting prevents gas leaks effectively.
4 Inch Insulated Flexible Duct – 4 FT Noise Reducer Heavy-Duty 4″ X 4 FT Black
Variety of Applications: insulated flexible duct is suitable for HVAC system. Anti-Corrosion & Durable: Thick layer of PVC & 2 layers of Aluminum on this flexible ducting prevents gas leaks effectively.
6” Insulated Flexible Duct 8 FT Long Noise Reducer Hose 6″ X 8 FT Gray
6″ Insulated Flexible Duct 8 FT Long, Gray Noise Reducer Hose Silencer for Inline Duct Fan of Air Conditioner HVAC Ventilation System. Reduce Noise： Noise Reducer Silencer is designed for reducing nosie from fans and carbon filter systems, can decrease the noise by up to 50%.