4" Duct Connector Flange, Dryer Vent Wall Plate Square to Round Straight with Ducting Clamp for Air Heating Cooling Ventilation Exhaust Fan, Black 0.9" X 1.3" Bottom Inner Diameter: 56mm /

Bottom Inner Diameter: 56mm / 2

The corner protector are made of metal

Total Size: 20

20Pcs x Gapless Connector

Specifications: OE Number: 68212784AB

4" Duct Connector Flange, Dryer Vent Wall Plate Square to Round Straight with Ducting Clamp for Air Heating Cooling Ventilation Exhaust Fan, Black 0.9" X 1.3" Bottom Inner Diameter: 56mm /The duct connector flange is perfect for connecting your tumble dryer, bathroom or kitchen exhaust fan, soilless cultivation system, inline duct fans, range hood, or kitchen hood to a ventilation system. It is designed to facilitate the smooth and efficient flow of air, ensuring that your appliances work effectively and your indoor air quality is maintained. Specification Color: Black Material: ABS Plastic Outer Diameter of Top Interface: 90mm 3. 54