4" Inch Silent Extractor Fan Duct Hydroponic Inline Exhaust Industrial Home Vent
1 x Inline Duct Fan. It is easy to install and use. Made from premium ABS and PP, the shell and blades are durable and not easy to deform. Rotary Speed: 2200/2550r/min. Weight: Approx.2125g~3535g/75oz~124.7oz.