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Insulated Flexible Duct, 4 in, 25 ft L, Fiberglass, Silver

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Master Flow F6IFD4X300 Insulated Flexible Duct, 4 in, 25 ft L, Fiberglass, Silver

Item #: F6IFD4X300 by Master Flow

UPC #: 050206922064

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Features
  • Two-ply continuous inner core products, smooth interior for more efficient air movement
  • Vapor barrier, durable and scuff-resistant jacket
  • Zinc-coated, high-carbon steel wire helix
  • Thick, continuous blanket of glass fiber insulation
  • Metalized single-strand fiberglass yarns for added strength and tear-resistance

Color

Silver Jacket

Pack Size

1

Certifications

ETL, UL

Certifications and Listings

ETL Listed, UL Recognized

General Material

Fiberglass

HVAC Product Type

Air Duct

Insulated

YES

Insulation R-Value

6

Maximum air flow (CFM)

30

Product Depth (in.)

300

Product Diameter (in.)

4

Product Height (in.)

7.5

Product Length (in.)

300

Product Width (in.)

7.5

UNSPSC

40141900

Finish

Silver

Outside Diameter

4"

Material

Fiberglass

Length

25"

Air Flow Rate

4000 fpm

Material Gauge

2

Nominal Size

4"

Temperature Rating

-20 to 250 deg F

Nomenclature

F6IFD4X300 4IN AIR DUCT INSLAT

Product Overview

The Master Flow 4 in. x 25 ft. Insulated Flexible Duct R6 Silver Jacket is used in standard Heating and Air Conditioning (HVAC) systems and some venting applications. The duct has R6 insulation which contains 33% more insulation than the standard R4.2 product. This additional insulation provides greater thermal efficiency to save energy. The product is also covered in a heavy duty, silver jacket for durability. The duct is ETL listed, meeting the UL181 standard.

  • R6 fiberglass insulation for greater insulating power
  • Flexible duct is convenient for use in multiple applications including heating and A/C systems and some venting
  • Oversized core to connect quickly and easily to standard sheet metal fitting
  • Galvanized core wire for greater corrosion resistance vs. non-galvanized wire
  • Duct can be cut to length as needed
  • Insulated duct features a maximum temperature rating of 200 degree F
  • Always install per instructions and seal using approved mastic or sealant (or approved tape)