12" Duct Connector Flange, Dryer Vent Wall Plate Square to Round Straight Ducting Plate for Air Heating Cooling Ventilation Exhaust Fan, Black Raw Material male to female

male to female

for Mercedes-Benz GL550 V8 5

Backing Plate: Backing plate included - clip on type

for GMC Sierra 1500

12" Duct Connector Flange, Dryer Vent Wall Plate Square to Round Straight Ducting Plate for Air Heating Cooling Ventilation Exhaust Fan, Black Raw Material male to femaleThe duct connector flange is mainly used to connect the duct hose (not included) to an output port through a bolted connection. Widely used on the home, kitchen, bathroom, garage, and office. Suitable for this area which needs a ventilation system. Specification Color: Black Material: ABS Plastic Outer Diameter of Top Interface: 285 mm 11. 22 inch Outer Diameter of Bottom Interface: 298 mm 11. 73 inch Fit for Ducting Hose with Inner Diameter: 300mm 12