Atco #031 Series 13102409 Insulated Flexible Duct, 9" Duct Size, 300" Length, 8 R-Value, Plain End Connection, Round, Polyester/Steel (Inner Core), Fiberglass (Insulation), Metallized Polyester/Fiberglass (Jacket), 6 In. Wc. (Positive), 1 In. Wc. (Negative) Pressure Rating

Color	:	Silver
Connection Type	:	Plain End
Diameter	:	9 "
Domestic/Import	:	Domestic
Duct Size	:	9 "
Finish	:	Reinforced Metallized Polyester
Flow Rate	:	5,000 FPM
Length	:	300 "
Material	:	Polyester/Steel (Inner Core), Fiberglass (Insulation), Metallized Polyester/Fiberglass (Jacket)
Pressure Rating	:	6 in. wc. (Positive), 1 in. wc. (Negative)
R-Value	:	8
Series	:	#031 Series
Size	:	9" Diam x 25' L
Temperature Rating	:	-20-140 °F (Continuous, Max Pressure)
Vapor Transmission	:	0.05 perms
Velocity Rating	:	5,000 FPM
Vent Duct Shape	:	Round

Atco Insulated Flexible Duct, Model: #031 Series, 9" Duct Size, 300" Length, 8 R-Value, Plain End Connection, Round, Polyester/Steel (Inner Core), Fiberglass (Insulation), Metallized Polyester/Fiberglass (Jacket), 6 In. Wc. (Positive), 1 In. Wc. (Negative) Pressure Rating, -20-140 °F (Continuous, Max Pressure), 5,000 FPM, 0.05 Perms Vapor Transmission, Reinforced Metallized Polyester Finish, Silver, Domestic Origin

Air-tight, smooth inner core minimizes friction loss and prevents fiberglass erosion into the air stream.Encapsulated steel wire helix prevents unraveling when cut to length, facilitating quick installation.Features thick R-8 fiberglass insulation for excellent thermal efficiency.Tough, tear-resistant, reinforced metallized polyester outer jacket ensures durability and low maintenance.UL 181 listed as a Class 1 Air Duct for safety and compliance.Designed for use in low-to-medium pressure residential and commercial HVAC systems.Rated for air velocity up to 5,000 FPM.Covered by a 5-year manufacturer warranty against defects in material and workmanship.