
White Rodgers 21M51U-843 Universal 2-Stage Furnace Control Kit
Part/SKU: 21M51U-843
| Weight | 13 lbs |
|---|---|
| Condition | New |
| Manufacturer Part Number | 13602505 |
| Brand | Atco Rubber Products |
$56.99
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This Atco 5-inch insulated flex duct is designed for efficient HVAC airflow in both residential and light commercial heating and cooling systems.
It features a reinforced metalized polyester outer jacket and a double laminated black polyester inner core, supported by an encapsulated wire helix for strength and shape retention during installation.
The R6 insulation rating helps reduce heat loss and improve overall HVAC energy efficiency while also helping control condensation.
Diameter: 5 Inches
Length: 25 Feet
Insulation: R6
Color: Silver
Brand: Atco Rubber Products
Part Number: MFG# 13602505
Construction: Reinforced jacket + laminated core + wire helix
✔ HVAC supply runs
✔ Return air ducting
✔ Tight attic/crawlspace installs
✔ Residential HVAC systems
✔ Replacement duct runs
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