4Pcs 141-165mm Hose Clips Adjustable 304 Stainless Steel Duct Clamps Hose Clamp Pipe Clamp Air Ducting Clamp Worm Drive Hose Clamps

EesTeck 4Pcs 6" Adjustable 304 Stainless Steel Duct Clamps Hose Clamp Pipe Clamp Air Ducting Clamp worm drive hose clamps（141mm-165mm）

AC Infinity Flexible 6-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 25-Feet Long for Heating Cooling Ventilation and Exhaust

Vent Systems 6'' Inch Galvanized Steel Duct Connector - Round Ventilation Duct Extension - Metal Vent Coupler - Metal Hose Coupling - Galvanised Pipe Connector