3" X 25' Foil Flex Duct

05502503 Hart & Cooley Flexible Aluminum Foil Duct

The Hart & Cooley 05502503 Flexible Aluminum Foil Duct is engineered for professional HVAC applications where building codes require the use of all-metal ducting. This uninsulated flexible duct provides structural stability, corrosion resistance, and consistent airflow performance in systems requiring metallic duct construction. The lightweight yet durable aluminum foil laminate allows for efficient routing through confined or angled spaces without compromising airflow characteristics.

Technical Specifications

• Manufacturer: Hart & Cooley
• Model Number: 05502503
• Type: Flexible Aluminum Foil Duct (Uninsulated)
• Diameter: 3 inches
• Length: 25 feet
• Material: Multi-ply Aluminum / Aluminum Foil Laminate
• Thermal Performance: R6.0 Equivalent (Foil Construction)
• Maximum Operating Temperature: 250°F (121°C)
• Maximum Air Velocity: 5000 FPM (typical HVAC design condition)
• Static Pressure Rating: 10" W.G. positive / 1" W.G. negative
• Certification: UL 181 Class 1 Air Duct (F216 Rated)
• Color: Metallic Aluminum
• Application: HVAC air distribution, exhaust, and ventilation systems where all-aluminum ducting is mandated by code

Professional Notes

The Hart & Cooley 05502503 duct is specified for installations requiring metallic, non-combustible duct materials. The flexible aluminum foil construction supports ease of installation in space-limited or irregular routing conditions. All connections should be mechanically fastened and sealed per SMACNA guidelines and local mechanical code. The duct is suitable for exposed or accessible mechanical areas but is not intended for concealed plenum or dryer vent use unless explicitly permitted by code authority.

Summary

The Hart & Cooley 05502503 (F216) 3" x 25' Flexible Aluminum Foil Duct provides a code-compliant, all-metal ducting solution for professional HVAC systems. With a 250°F operating temperature rating and UL 181 Class 1 certification, it ensures durable performance and installation flexibility in metallic air distribution and exhaust applications.