Material — Polyester Film + Steel Wire
Non-Insulated Flexible Air Duct
Non-insulated flexible air duct engineered for all positive-pressure supply and return air HVAC systems. Featuring a spiral galvanized steel wire core with a durable, abrasion-resistant outer layer and smooth crimped ends for fast, airtight connections. Manufactured at our China & USA facility with proprietary production processes — delivering exceptional flexibility, easy installation, and reliable long-term performance for both residential and commercial applications.
- 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
- Designed for supply and return air systems
- High flexibility — bends to fit complex installation spaces
- Spiral galvanized steel wire support core
- Abrasion-resistant outer layer for durability
- Smooth crimped ends for quick, secure connections
- Fast installation — saves labor time
- Made in China & USA — fast domestic delivery
- Exclusive manufacturing capability — proprietary production process
Technical specifications
| Material | Multi-layer polyester film with aluminum coating |
|---|---|
| Core | Galvanized steel wire helix |
| Outer Layer | Abrasion-resistant reinforced polymer |
| End Finish | Smooth crimped ends for airtight connection |
| Diameter Range | 4" – 24" (100mm – 600mm) |
| Temperature Range | -20°C to +120°C (-4°F to +248°F) |
| Standard Length | 25 ft (7.6m) |
| Max Velocity | 5,000 fpm |
| Max Pressure | 10" W.G. positive / 1" W.G. negative |
| Manufacturing | Made in China & USA, USA |
| 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 |
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