Sarini Duct Connectors, 4 Inch to 3 Inch Duct Reducer, Duct Inline Adapter Size Increaser, ABS Plastic Vents for HVAC Heating Cooling Air Ventilation Systems (White)

• Versatile Duct Connector: Converts 4-inch duct to 3-inch duct, enabling seamless connections between different sized ducts in your HVAC system, ensuring efficient airflow and ventilation.
• Durable ABS Plastic: Made of ABS plastic, this duct reducer can withstand high temperatures and prolonged exposure to a variety of environmental conditions.
• Easy Installation: The duct connector features a simple slip-fit ??design, ensuring quick and easy installation without the need for special tools or extensive modifications.
• Enhanced Airflow Efficiency: The smooth interior of the inline adapter reduces air resistance, promoting optimal airflow and improving the overall efficiency of your HVAC system.
• Wide Application: Ideal for heating, cooling, and ventilation systems in residential, commercial, and industrial settings, providing flexibility for HVAC installations and upgrades.

Features 1. Made of durable ABS material, it is lightweight, waterproof, moisture-proof, wear-resistant, pressure-resistant, not easy to deform, and can be used for a long time; 2. The smooth inner sur-face design can reduce ventilation resistance; the interface can connect two different sizes of pipes, with good sealing effect, meeting your various DIY pipe decoration needs. Specifications Color: White Material: ABS Height: 80 mm/3.15 inches Inner diameter: 100 x 75 mm/4 x 3 inches (large * small) Outer diameter: 103 x 78 mm/4.1 x 3.07 inches (large * small) Packing list: 1 x Pipe reducer connector Description Easy to install, just connect both ends of the connector to the pipe of the appropriate size. Note: Please choose the appropriate size according to your needs.