ECOPRO VENT 6 to 4 Inch Duct Reducer/Increaser, Male-Fit Round Adapter, Plastic Reducer And Increaser, Duct Connector for Indoor HVAC and Ventilation Systems, Lightweight Round Air Vent Fitting

ECOPRO VENT 6 to 4 Inch Duct Reducer/Increaser, Male-Fit Round Adapter, Plastic Reducer And Increaser, Duct Connector for Indoor HVAC and Ventilation Systems, Lightweight Round Air Vent Fitting

• PRECISE SIZE TRANSITION: 6 to 4 inch duct adapter with stepped design. Diameter 5.87 Inch on the larger side and 3.89 Inch on the smaller side. Insertion depth 1.18 Inch. Designed for accurate indoor duct connections.
• LIGHTWEIGHT PLASTIC CONSTRUCTION: Made from lightweight plastic material suitable for indoor HVAC duct fittings. This reducer resists moisture and corrosion, making it ideal for long-term use in ventilation systems and indoor air duct installations.
• FUNCTIONAL AIRFLOW CONNECTION: Duct adapter provides a smooth airflow transition between duct sizes while reducing turbulence at connection points. INTEGRATED RIM: It acts as a stop edge to prevent ducts from sliding too far over the connector, helping maintain proper positioning during installation.
• EASY INSTALLATION WITHOUT ADHESIVE: Plastic duct connector installs easily without glue or adhesive. Both ends feature a male fit that inserts inside compatible round ducting. Clamps may be used for additional holding strength in HVAC duct connections. Suitable for DIY and professional installations.
• INDOOR HVAC APPLICATION: This plastic reducer is Intended for indoor HVAC systems, air ventilation ducts, round vent connections, and general air duct installations in residential and commercial interiors. Operating temperature range 14 °F to 158 °F (-10 °C to +70 °C ). Not recommended for high-heat or outdoor installations.