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Silver foil flexible ducting coiled, 25 ft length

Lambro Ind.

Lambro Ind. 414 4-In. x 25-Ft. Foil Flex Duct

SKU CH-Y5SG-0KMV0

A flexible foil duct that resists tears and punctures while operating from -86°F to 250°F

  • Flexible duct eases routing in tight spaces
  • Installer-friendly design speeds up assembly work
  • Uninsulated foil construction keeps weight low
  • Withstands temperatures from -86 °F to 250 °F
  • Resists tearing and puncturing during handling

4-Inch Foil Flex Duct, 25-Foot Length

The Lambro 414 foil flex duct comes in a 25-foot roll with a 4-inch diameter. It is built for general ventilation and air-movement tasks where an uninsulated, highly flexible duct is required. The construction resists tearing and puncturing during handling. It suits installers who need a lightweight, pliable duct for tight routing.

Installer-friendly flexibility

The duct bends easily around obstacles and through joist bays, reducing the need for extra elbows or fittings. Its foil laminate resists tearing and puncturing when pulled through framing. The operating range spans -86 deg F to 250 deg F, so it must not be used in environments that exceed these limits. Uninsulated walls mean condensation can form if the duct carries cold air through warm, humid spaces.

Verify diameter, length

Confirm that your system uses 4-inch round connections; the duct will not fit other diameters without adapters. Measure the total run to ensure a single 25-foot length is sufficient or plan for couplers. Because the duct is uninsulated, check local codes and the application to decide whether external wrap or a pre-insulated alternative is required.

How it compares

Measured against everything we stock in Tech Gadgets & Accessories, at today’s prices. Recalculated every night.

Price $27.99
Pricier than about 56% of the 5,998 comparable items (median $24.99).

Specifications

No published specifications for this item yet.

Questions about this item

How can I verify the duct is performing correctly after installation?

Check that air flows freely through the 4-inch diameter without restriction and confirm the foil surface shows no tears or punctures after the system runs.

What comes with the duct and what must I purchase separately?

The package includes a single 25-foot length of uninsulated foil flex duct; connectors, clamps, tape and any insulation wrap are sold separately.

Which version of this duct should I choose for my application?

Model 414 is the only version offered here — a 4-inch by 25-foot uninsulated foil flex duct rated from -86°F to 250°F.

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