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12″ x 25′ R8 Insulated Flex Duct Silver HVAC 4GF-8*12

SKU: 4GF-812

$179.40

Only 2 left in stock

Same-item volume pricing
QuantityUnit priceSaving
1–4$179.400%
5–9$170.435%
10+$161.4610%

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12″ x 25′ R8 Insulated Silver Flex Duct

MFG# 4GF-8*12 | Gray Flex Systems

This 12-inch diameter insulated flexible HVAC duct is designed for residential and light commercial air distribution systems.

Constructed with a reinforced metalized polyester outer jacket, fiberglass R-8 insulation, and a double laminated black polyester inner core with encapsulated wire helix, this duct provides excellent thermal performance and durability.


Key Specifications:

  • Diameter: 12″

  • Length: 25 ft

  • Insulation: R-8 Fiberglass

  • Outer Jacket: Silver Reinforced Metalized Polyester

  • Inner Core: Double laminated polyester

  • Wire Support: Encapsulated steel helix


Benefits:

✔ Reduces energy loss in attic & crawlspace installs

✔ Minimizes condensation

✔ Flexible for tight HVAC routing

✔ Durable vapor barrier jacket

✔ Ideal for supply & return air runs

Commonly used in:

  • New HVAC installations

  • Duct system upgrades

  • Residential & commercial heating/cooling systems

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