4″ x 25′ R8 Insulated Flex Duct Silver HVAC Air Duct MFG# 4GF-8*

Name: 4" x 25' R8 Insulated Flex Duct Silver HVAC Air Duct MFG# 4GF-8*
SKU: 4GF-8*4 BAGGED
Price: 87.66 USD
Availability: InStock

SKU: 4GF-8*4 BAGGED

$87.66

Only 2 left in stock

Same-item volume pricing

Quantity	Unit price	Saving
1–4	$87.66	0%
5–9	$83.28	5%
10+	$78.89	10%

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Product Description

4″ x 25′ R8 Insulated Flexible HVAC Duct – Silver Jacket

Professional-grade 4-inch insulated flex duct designed for residential and light commercial HVAC systems.

This R8 rated duct features a reinforced metallized polyester outer jacket and a double-laminated black polyester inner core with encapsulated wire helix for durability and airflow support.

Specifications:

Diameter: 4″
Length: 25 Feet
Insulation: R-8
Color: Silver
Manufacturer: Gray Flex Systems
Model: 4GF-8
Bagged for protection

Key Benefits:

✔ Energy-efficient R8 insulation

✔ Flexible for tight ceiling and attic runs

✔ Reinforced outer vapor barrier jacket

✔ Encapsulated wire helix for structural support

✔ Reduces heat loss and condensation

Ideal For:

Residential HVAC installations
Supply and return air duct runs
Retrofit applications
New construction ductwork

This duct meets common HVAC insulation requirements for attic installations in many climate zones.

Product details

Part / SKU	4GF-8*4 BAGGED

Package includes

4" x 25' R8 Insulated Flex Duct Silver HVAC Air Duct MFG# 4GF-8*

Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.