![Master Flow F6IFD4X300 Insulated Flexible Duct, 4 in, 25 ft L, Fiberglass, Silver [SKU: ORG8628638]](https://cdn11.bigcommerce.com/s-er447ou6zb/images/stencil/600x600/products/34440/33110/8628638__11178.1683068819.jpg?c=1 "Master Flow F6IFD4X300 Insulated Flexible Duct, 4 in, 25 ft L, Fiberglass, Silver [SKU: ORG8628638]")
Product Overview
Metalized jacket, single strand fiberglass yarns for added strength and tear resistance. 2 in thick glass fiber. [QTY/UOM: 1EA / 1EA] [PMS SKU: ] [Category: HVAC DUCT WORK & VENTILATION/PIPES;Shop All]
![Master Flow F6IFD4X300 Insulated Flexible Duct, 4 in, 25 ft L, Fiberglass, Silver [SKU: ORG8628638]](https://cdn11.bigcommerce.com/s-er447ou6zb/images/stencil/1280x1280/products/34440/33110/8628638__11178.1683068819.jpg?c=1 "Master Flow F6IFD4X300 Insulated Flexible Duct, 4 in, 25 ft L, Fiberglass, Silver [SKU: ORG8628638]")
![Master Flow F8IFD4X300 Insulated Flexible Duct, 4 in, 25 ft L, Fiberglass, Silver [SKU: ORG1649003]](https://cdn11.bigcommerce.com/s-er447ou6zb/images/stencil/500x659/products/34372/33042/1649003__76504.1683068780.jpg?c=1 "Master Flow F8IFD4X300 Insulated Flexible Duct, 4 in, 25 ft L, Fiberglass, Silver [SKU: ORG1649003]")
Master Flow
![Master Flow F6IFD6X300 Insulated Flexible Duct, 6 in, 25 ft L, Fiberglass, Silver [SKU: ORG4100772]](https://cdn11.bigcommerce.com/s-er447ou6zb/images/stencil/500x659/products/34441/33111/4100772__71719.1683068819.jpg?c=1 "Master Flow F6IFD6X300 Insulated Flexible Duct, 6 in, 25 ft L, Fiberglass, Silver [SKU: ORG4100772]")
Master Flow
![Master Flow F8IFD6X300 Insulated Flexible Duct, 6 in, 25 ft L, Fiberglass, Silver [SKU: ORG1649011]](https://cdn11.bigcommerce.com/s-er447ou6zb/images/stencil/500x659/products/34373/33043/1649011__76059.1683068780.jpg?c=1 "Master Flow F8IFD6X300 Insulated Flexible Duct, 6 in, 25 ft L, Fiberglass, Silver [SKU: ORG1649011]")
Master Flow
![Master Flow F6IFD12X300 Insulated Flexible Duct, 12 in, 25 ft L, Fiberglass, Silver [SKU: ORG8628646]](https://cdn11.bigcommerce.com/s-er447ou6zb/images/stencil/500x659/products/34445/33115/8628646__35461.1683068821.jpg?c=1 "Master Flow F6IFD12X300 Insulated Flexible Duct, 12 in, 25 ft L, Fiberglass, Silver [SKU: ORG8628646]")
Master Flow
![Master Flow F6IFD8X300 Insulated Flexible Duct, 8 in, 25 ft L, Fiberglass, Silver [SKU: ORG0225961]](https://cdn11.bigcommerce.com/s-er447ou6zb/images/stencil/500x659/products/34442/33112/0225961__84290.1683068819.jpg?c=1 "Master Flow F6IFD8X300 Insulated Flexible Duct, 8 in, 25 ft L, Fiberglass, Silver [SKU: ORG0225961]")
Master Flow