Noise Reducing Ventilation Fan Exhaust Silencer, 160mm Diameter 21.7in PVC Air Duct Hose

1、Adopting ABS thicked material, smooth surface, ABS integrated production. 2、The effect of using sufficient materials is good, and the product is suitable for the outlet of the duct fan. 3、Circular ABS interface, with heat insulation, anti‑corrosion and anti‑aging characteristics. 4、PVC air duct is seamlessly connected, practical, and can be bent at will. 5、Its installation is simple and convenient, just connect and fix the two ports of the pipe with the ventilation pipe.