Description
Product Summary
QuietFlex part 1671 is a 16-inch by 25-foot R-6 insulated flexible air duct from the QuietFlex 71 Series. It carries conditioned supply or return air between trunk lines, plenums and register boxes in residential and light commercial systems.
The 71 Series uses a uv-inhibited polyethylene (hud outdoor-rated) vapor-barrier jacket over fiberglass insulation and a steel wire helix core, and it is rated for outdoor (mobile home, hud-rated) use.
Key Features
- R-6 insulation: reduces duct heat gain and loss and helps control condensation.
- 71 Series jacket: uv-inhibited polyethylene (hud outdoor-rated) protects the insulation.
- 25-foot length: covers long branch runs from a single bag.
- Steel wire helix core: holds the inner core open for consistent airflow.
- Fits standard collars: 16-inch size matches standard 16-inch collars, take-offs and register boxes.
Specifications
| Brand | QuietFlex |
|---|---|
| Model | 1671 |
| Series | QuietFlex 71 Series |
| Inside Diameter | 16 in |
| Length | 25 ft |
| Insulation R-Value | R-6 |
| Jacket | UV-inhibited polyethylene (HUD outdoor-rated) |
| Application | Outdoor (mobile home, HUD-rated) |
| Insulation | Formaldehyde-free fiberglass, oversized core |
| Rating | Complies with HUD standards for outdoor use with mobile homes |
Ideal Applications
- Mobile and manufactured home crossover and under-floor duct runs
- Outdoor exposed duct where HUD-rated duct is required
Frequently Asked Questions
What size collar does it fit?
It fits 16-inch round collars, take-offs and register box inlets. Secure it with approved tape or mastic and a duct strap.
What is the R-value?
It is insulated to R-6.
Can it be used outdoors?
Yes, the 71 Series is a HUD-rated mobile home duct for outdoor use.
How long is each piece?
Each bag holds a 25-foot length that can be cut to size on site.
Why Buy From HVAC365
HVAC365 offers competitive pricing on QuietFlex flexible duct, fast shipping from stock, and support from HVAC specialists who work with contractors and property owners every day. Contact HVAC365 for sizing help, matching components or accessories before you order.
