Atco #031 Series 13102416 Insulated Flexible Duct, 16" Duct Size, 300" Length, 8 R-Value, Plain End Connection, Round, Polyester/Steel (Inner Core), Fiberglass (Insulation), Metallized Polyester/Fiberglass (Jacket), 4 In. Wc. (Positive), 0.75 In. Wc. (Negative) Pressure Rating

Color	:	Silver
Connection Type	:	Plain End
Diameter	:	16 "
Domestic/Import	:	Domestic
Duct Size	:	16 "
Finish	:	Reinforced Metallized Polyester
Flow Rate	:	5,000 FPM
Length	:	300 "
Material	:	Polyester/Steel (Inner Core), Fiberglass (Insulation), Metallized Polyester/Fiberglass (Jacket)
Pressure Rating	:	4 in. wc. (Positive), 0.75 in. wc. (Negative)
R-Value	:	8
Series	:	#031 Series
Size	:	16" 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, 16" Duct Size, 300" Length, 8 R-Value, Plain End Connection, Round, Polyester/Steel (Inner Core), Fiberglass (Insulation), Metallized Polyester/Fiberglass (Jacket), 4 In. Wc. (Positive), 0.75 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

UL 181 certified as a Class 1 Air Duct for code compliance.Features an air-tight inner core for energy efficiency and preventing fiberglass erosion.Encapsulated wire helix allows for quick installation without unraveling when cut.Smooth inner core design reduces friction loss and operating costs.R-8.0 fiberglass insulation delivers superior thermal performance.Tough, reinforced metallized polyester jacket resists tears and punctures.Comes with a 5-year manufacturer warranty against defects in material and workmanship.