<p><b>Features:</b> <br>- Used for exhaust fan applications; provides good airflow and easy connection <br>- 4 inches in diameter, 25 feet long duct hose and 2 metal clamps will work with most dryers or vent fans <br>- Constructed of heavy duty aluminum foil laminated for durability; resistant to corrosion and temperature variations <br>- Flexible, easy to install, and convenient for any ventilation application <br>- Commercial and residential air duct solution. Widely used in HVAC applications, bathroom venting, stove hood exhaust, dryer venting <p><b>Product Specification: </b> <br>- Material: Aluminum <br>- Color: Silver <br>- Product Dimensions: 4"Diameter*25ft Long <br>- Package Dimension: 17 "L*4.5"W*4.5"H <br>- Gross Weight: 1.87lbs <p><b>Package Includes: </b> <br>- 1 x Vent Hose <br>- 2 x Metal Clamps <p><b>Product Warranty: </b> <br>- We assure that the item you received is 100% safe and sound. For any defective item, please contact our customer service for a satisfying solution.