4in x 25ft R8 Insulated Flexible Duct Silver HVAC Vent Hose ETL

This 4-inch x 25-foot R8 insulated flexible duct is designed for high-efficiency HVAC systems, offering superior thermal insulation and reliable airflow performance. With R8 insulation providing significantly improved energy efficiency over standard options, it helps reduce heat loss and maintain optimal air temperature throughout the system. The durable silver jacket enhances strength and longevity, while the oversized core ensures fast and secure connections to standard fittings. Flexible and easy to install, this duct can be cut to desired length and is suitable for heating, cooling, and venting applications requiring dependable insulated airflow.

Everbilt 4 in. x 12 ft. R6 Insulated Flexible Duct Silver Jacket

Th EVERBILT 4 in. The duct has R6 insulation which contains 33% more insulation than the standard R4. 2 product. The product is also covered in a heavy duty, silver jacket for durability. It can be used for venting bath fans where insulation is required.

Master Flow 4 in x 25 Ft Flexible Duct R6 Heavy Duty Insulated Reflective Jacket

The Master Flow 4 in x 25 Ft Flexible Duct R6 is a heavy-duty insulated duct hose designed for heating and cooling systems. Made of fiberglass material with a thickness of 1.75 inches, this round-shaped hose features a silver color and has an item diameter of 4 inches. With a length of 300 inches and featuring a flexible design, this duct hose is ideal for various HVAC applications and can help improve system efficiency by reducing heat loss. Made in the United States by the trusted brand Master Flow, this flexible duct option is a reliable choice for home improvement projects.

Lambro 4 inch x 8 foot Flexible Aluminum Semi-Rigid DRYER Duct W/ 2 Worm Clamps

The Lambro 4 inch x 8 foot Flexible Aluminum Semi-Rigid HVAC Duct is a high-quality ducting solution designed for heating and cooling systems. With a 4-inch diameter and made of durable aluminum material, this HVAC duct offers flexibility for easy installation and maintenance. The semi-rigid design allows for smooth airflow while ensuring rigid support for efficient heating and cooling performance. Perfect for home improvement projects related to heating, cooling, and air systems, this duct is a reliable choice for improving indoor comfort.