[
"Air Duct",
"Type Class 1, Encapsulated, Flexible",
"Insulation Type Fiberglass R-6",
"Burning Character Flame Spread Less than 25, Smoke Developed Less than 50",
"Air Velocity 5000 FPM",
"Rated Positive Pressure 6 Inch WG",
"Rated Negative Pressure 1 Inch WG",
"Core Material Air-Tight 2-Ply Black Polyester Encapsulated Steel Wire Helix (Inner)",
"Length 25 Foot",
"Width 4 Inch",
"Temperature Rating -20 to 140 Deg F (Continuous), -20 to 200 Deg F (Intermittent)",
"Applicable Standard UL 181, UMC, NFPA 90A/90B, IMC, ADC, ASTM E96A-94",
"Vapor Barrier Material 2-Poly Reinforced Metalized Polyester",
"End Treatment Raw Ended",
"Application Indoor"
]
[
"Vapor Barrier Material 2-Poly Reinforced Metalized Polyester",
"End Treatment Raw Ended",
"Application Indoor"
]
Features/Benefits
MHP-25 (25 Foot Length) Flexible Duct is Constructed with a Spring Steel Wire Helix, Encapsulated in a 2-Ply, Air-Tight Inner Core Fiberglass Insulation Choices of R4.2, R6 and R8 Encompass the Core and a Unique Metalized, Reinforced Vapor Barrier Surrounds the Entire Duct Flexible Air Ducts are for Indoor Applications and Should Not be Exposed to Direct Ultraviolet Light