Hon&Guan 4 Inch Noise Reduction Clamp,Flexible Rubber Duct Coupler

Wide Compatibility：Designed to connect 6-inch inline duct fan, carbon filters, pvc pipes, rigid ducting, and and 6 inch to 4 inch duct reducer for a stable ventilation setup,Airtight Fit：The durable rubber body combines flexibility and strength for a snug fit over rigid duct ports, helping prevent air leaks and maintain smooth, efficient airflow,Noise Reduction：Helps reduce operating noise by absorbing fan vibration and sound waves generated by airflow through the ducting,Steel Clamps：The ends are held in place by adjustable stainless steel clamps and worm drive locks, for a tighter, more durable connection than other common connecting fittings,Versatile Use：4 inch rubber coupling，widely used in ventilation systems such as air-cooled fume hoods, garages, attics, bathrooms, kitchen exhaust fans, hydroponic ventilation, and dust collection setups