Atco Flex Duct, 4"x25' R4.2 Ins Dbl Ply Poly Series30 SKU: EM440 MFG Part Number: EM440
$33.59
$67.18
Flex Duct, 4"x25' R4.2 Ins Dbl Ply Poly Series30
Insulated Flexible Duct - 30 Series
- Class 1 Air Duct - UL 181
- Tri-directional fiberglass scrim
reinforced, metalized polyester
outer jacket
- Air-tight inner core
- Encapsulated wire helix - no
unraveling when cut, quick installation
- Smooth inner core for low friction loss
- Thick blanket of fiberglass insulation
#030 Double Ply Polyester Core R-Value 4.2
Insulated Flexible Duct - 30 Series
- Class 1 Air Duct - UL 181
- Tri-directional fiberglass scrim
reinforced, metalized polyester
outer jacket
- Air-tight inner core
- Encapsulated wire helix - no
unraveling when cut, quick installation
- Smooth inner core for low friction loss
- Thick blanket of fiberglass insulation
#030 Double Ply Polyester Core R-Value 4.2