Quietflex QF#840 Rip Stop Flexible Air Duct 8 Inches Diameter 25 Feet

Product Description

The Quietflex QF#840 is a rip stop flexible air duct designed for HVAC systems. This duct has an eight-inch diameter and a length of twenty-five feet. It provides effective ventilation with an impressive air flow performance and is suitable for a variety of residential and commercial applications.

• Constructed with a metalized polyester vapor barrier
• Includes Johns Manville insulation for improved thermal performance
• Designed for both positive and negative pressure applications

Product Highlights

Quietflex Rip Stop Flexible Foil Air Duct excels in energy efficiency and airflow capabilities.

Product Information

Standard Information

• Brand: Quietflex
• Manufacturer: Quietflex Manufacturing Co.

Technical Specifications

• Diameter: Eight inches
• Length: Twenty-five feet
• Velocity Rating: Six thousand feet per minute
• Continuous Temperature Range: Minus twenty to one hundred eighty degrees Fahrenheit
• Intermittent Temperature Range: Minus twenty to two hundred degrees Fahrenheit
• R-Value: R4.2
• Static Pressure: Negative one-half inch W.C. to positive ten inches W.C.