
Material — Heavy-Gauge Aluminum
Flexible Ducts
Semi-Rigid Duct (Aluminum)
Heavy-gauge semi-rigid duct in aluminum that holds its shape after bending. This semi rigid aluminum duct delivers superior airflow performance with minimal pressure drop. Ideal for dryer vents, range hoods, and tight spaces.
- In stock — ships in 1–15 days
- UL 181 Class 1 standard
- 30 years in HVAC duct
- Houston, TX — 5,000 m²
- FTL / LTL freight available
Key features
- Heavy-gauge aluminum construction
- Holds shape after bending — no sagging
- Smooth inner surface for max airflow
- Temperature range up to +400°C (+752°F)
- Fire-safe for dryer venting
- UL 2158A listed
Technical specifications
| Material | Semi-rigid aluminum alloy |
|---|---|
| Construction | Corrugated aluminum tube |
| Diameter Range | 3" – 12" (75mm – 300mm) |
| Temperature Range | -20°C to +400°C (-4°F to +752°F) |
| Standard Length | 8 ft (2.4m) |
| Color | Silver |
| Wall Thickness | 0.1mm – 0.15mm |
| Compliance | Complies with UL2158A Standard |
Business terms
| MOQ | 100 pcs (stock items no minimum) |
|---|---|
| Samples | Available on request |
| Lead time | In-stock: 1–15 days / Custom: 30–45 days |
| Payment | Net 30, credit card, wire transfer |
| Shipping | FOB Houston, TX — nationwide delivery |
Request a quote for Semi-Rigid Duct (Aluminum)
Tell us your requirements. We respond within 24 hours on business days.
FAQ
Semi-Rigid Duct (Aluminum) — FAQ
What is the MOQ for the Semi-Rigid Duct (Aluminum)?
Standard catalog items are available in small quantities with no minimum order. Custom or private label orders typically require 500–1,000 pieces depending on customization level. We carry this product in our 5,000 m² factory in Houston, TX (Greater Houston area). Contact us for pricing.
How fast can I get the Semi-Rigid Duct (Aluminum)?
In-stock items ship within 1–15 business days from our 5,000 m² factory at Dongyang, China & Houston, TX. Custom or OEM orders require 30-45 days. We respond to quote requests within 24 hours.
Can I get the Semi-Rigid Duct (Aluminum) with my own branding?
Yes. We offer full private label services including custom printing, packaging, labeling, and product modifications. With 28 years of manufacturing experience and 6 self-designed production lines, we can accommodate most custom requirements. Share your branding specs for a quote.
What sizes are available for the Semi-Rigid Duct (Aluminum)?
Standard sizes range from 3" – 12" (75mm – 300mm). Standard lengths are 25 ft (7.6m). Custom diameters from 1" to 48" and custom lengths are available. We manufacture on our own equipment, so non-standard sizes are no problem. Contact us with your specifications.
What certifications does the Semi-Rigid Duct (Aluminum) have?
Our products are RoHS compliant and manufactured to meet UL 181 Class 1 air duct standards. We are one of only 3 factories in China pursuing UL listing for flexible ducts. All products undergo in-process quality inspection and pre-shipment testing.




