iPower DF100-AS 4" Inline Duct Ventilation Fan WITHOUT controller

iPower DF100-AS 4" Inline Duct Ventilation Fan WITH controller

Intertek DF100-AS 4" Inline Duct Ventilation Fan with controller knob (L28)

12pc 4" Steel Adjustable Hose Clamps Worm Gear Duct Pipe Clamp Auto Dryer Vent

LOKMAN 2.5 Inch Stainless Steel Duct Clamp Worm Gear Adjustable

2pcs 1mm ID 2mm OD ceramic tube 99 Alumina small pipe duct vessel 10mm-50mm LONG

MIAHART 3 inch Hose Clamp Adjustable 304 Stainless Steel Duct 59-82mm, Silver

2/3/4/6/8/10/12mm 1/8-1/2 1meter 316 stainless steel tube coil pipe hollow duct