10" × 25' Flexible Air Duct - Non-Insulated HVAC Connector for Crawl Space Ventilation

SKU: BUILD-CSF-DT

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$75.00

Estimated standard delivery between January 06 and January 09. Order within . Upgrade for faster delivery at checkout.

  • Product Type: UL 181 Air Connector
  • Diameter (Selling Size): 10 inches
  • Length (Selling Length): 25 feet
  • Height (Compressed): 10 inches
  • Width: 10 inches
  • Construction: Polyester aluminum foil and polyester tri-laminate
  • Core: 3/8 inch oversized
  • Insulation: Non-insulated
  • Fire Rating: Class 1
  • Maximum Velocity: 5000 FPM (feet per minute)
  • Pressure Rating: 10 inches WG (water gauge)
  • Temperature Rating: -20°F to +200°F
  • Formaldehyde: Free
  • One 25-foot section of 10-inch flexible air duct

We want you to be happy with your product!

Within 30 days of your order, we offer a 100% refund if a product was faulty, defective, or damaged in shipping and replacement is not feasible. While extremely rare, if we make a mistake we will also refund or replace the item.

New, unopened standard products may be returned within 30 days of delivery for a refund.

Restocking fees apply on opened boxes. Customer is responsible for return shipping costs for preferential returns.

10" × 25' Flexible Air Duct - Non-Insulated HVAC Connector for Crawl Space Ventilation

10" × 25' Flexible Air Duct - Non-Insulated HVAC Connector for Crawl Space Ventilation

$75.00

$75.00

UL 181 Certified

Meets UL 181 standards for air connectors with GreenGuard Gold certification—ensures quality, safety, and low emissions for residential crawl space ventilation systems.

Durable Construction

Spring steel wire helix in aluminum/polyester tri-laminate resists tearing and maintains flexibility—withstands demanding crawl space conditions with 10-year warranty coverage.

Flexible Routing

10" diameter with 25' length routes around joists, piers, and obstacles without complex fittings—simplifies installation in tight crawl space environments.

Wide Temperature Range

Rated -20°F to +200°F handles extreme crawl space temperature variations—reliable year-round performance regardless of climate or seasonal conditions.

10" × 25' Flexible Air Duct - Non-Insulated HVAC Connector for Crawl Space Ventilation

Efficient Air Conveyance

This professional-grade 10-inch diameter flexible air duct provides 25 feet of non-insulated ducting for connecting crawl space exhaust fans to foundation vents, creating efficient air pathways for moisture removal systems. The UL 181 certified air connector features durable aluminum and polyester construction with spring steel wire helix for shape retention, handling air velocities up to 5000 FPM in low to medium pressure HVAC applications and exhaust systems.