[
"Air Duct",
"Type Insulated, Class 1, Flexible",
"Insulation Type R8",
"Burning Character Flame Spread Less than 25, Smoke Developed Less than 50",
"Air Velocity 5000 FPM",
"Rated Positive Pressure 4 Inch WG",
"Rated Negative Pressure 1/2 Inch WG",
"Core Material Airtight 2-Ply Black Pigmented Polyester (Inner)",
"Length 25 Foot",
"Temperature Rating -20 to 140 Deg F (Continuous), -20 to 200 Deg F (Intermittent)",
"Applicable Standard UL 181, ADC, ASTM E96A-94, NFPA 90A/90B, IMC, UMC",
"Size 14 Inch Diameter",
"Inner Core Size 3/8 Inch",
"Vapor Barrier 2-Ply Reinforced Metalized Polyester",
"End Treatment Raw Ended"
]