Features: The 4" dryer vent duct extension connector is an ideal solution for enhancing ventilation efficiency across various applications. Its robust design and precise fit make it particularly suited for use in HVAC equipment, improving airflow and maintaining optimal operational conditions. Specifications: Material: Dryer vent connector: galvanized steel Aluminum foil tape: aluminum foil Color: silver Size: Dryer vent connector: diameter 4 × length 5 inches/ diameter 10.2 × length 12.7 cm Aluminum foil tape: 50 mm × 5 m Package includes: 1 × Dryer vent connector 1 × Aluminum foil tape Notes: Ensure compatibility with your duct size before purchasing. Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.