• Flexible aluminum duct <br> • Markings each foot for easy measurement <br> • For use as bath-fan exhaust duct <br> • Fire-resistant<br> • Easy to install<br> • 4" dia x 50ft length<br> • Nonretail bulk;
• Flexible aluminum duct <br> • Markings each foot for easy measurement <br> • For use as bath-fan exhaust duct <br> • Fire-resistant<br> • Easy to install<br> • 4" dia x...