Flexible Air Duct; Type Class 1, Plain End, Insulated; Insulation Type Thick Blanket Fiberglass, R-6; Burning Character Maximum Flame Spread 25, Maximum Smoke Developed 50; Air Velocity 5000 FPM; Rated Positive Pressure 10 Inch WG; Rated Negative Pressure 3/4 Inch WG; Jacket Material Gray Scrim Reinforced Metalized Polyester; Core Material Double Lamination Tough Polyester with Steel Wire Helix; Length 25 Foot; Width 9 Inch; Temperature Rating -20 to 140 Deg F; Applicable Standard ASTM C518, NFPA 90A/90B, UL 181, ADC, IMC, IRC, UMC 10-1; Vapor Transmission Rate 0.6 Perm; Used On Low to Medium Operating Pressure HVAC System; Application Indoor, Residential/Commercial, Air Duct System, Air Conditioning System, Diffuser, Light Troffer, Room Inlet
