Builder’s Best V330 PRO Semi-Rigid Flexible Aluminum Duct, Crimped/Plain, 3" x8'
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The Builder’s Best V330 PRO Semi-Rigid Flexible Aluminum Duct with one crimped end and one plain end is a non-insulated Class 0 metal duct designed for safe, efficient, and reliable venting in general air supply, return, and exhaust applications. Built for performance and durability, it offers a strong and flexible solution for dryers, exhaust fans, and HVAC systems.
Constructed from 100 percent aluminum alloy, the V330 PRO is corrugated and spiral-formed with continuous lockseams to ensure strength and maintain shape during installation. This model features a thicker wall than the Builder’s Best V320 duct, providing greater rigidity, dent resistance, and long-term durability in demanding environments. The crimped end allows simple joining to compatible fittings or additional duct sections, while the plain end provides a smooth, secure connection on the opposite side.
Each duct measures 8 feet in length and ships compressed to 24 inches for compact packaging and easier handling. The V330 PRO is rated for positive and negative pressures up to 6 inches water gauge and supports maximum air velocities of 5,000 feet per minute. It operates across a wide temperature range from -100°F to +430°F, offering dependable performance in both cold and high-heat conditions.
Meeting Class 0 requirements, the non-combustible aluminum construction achieves a flame speed of 0 and smoke developed value of 0, ensuring compliance with safety standards for metal ducts. Proudly made in the USA, the Builder’s Best V330 PRO Semi-Rigid Flexible Aluminum Duct provides a durable and code-compliant option for residential, commercial, and industrial ventilation systems.
- Semi-rigid aluminum duct with one end crimped and one plain, designed for reliable airflow in dryers, exhaust fans, and HVAC systems
- 100 percent aluminum alloy with continuous lockseams and a thicker wall than standard V320 models for added strength and rigidity
- 3-inch by 8-foot duct ships compressed to 24 inches for compact packaging and easy storage; expands to full length during installation
- Class 0 non-combustible metal construction withstands heat up to 430 degrees Fahrenheit with zero flame or smoke speed
- Builder’s Best delivers high-quality venting solutions made in the USA, engineered for safety, efficient airflow, and long-lasting durability
- Material: Aluminum
- Color: Silver
- Dimensions (L x W x H): 23.00 x 3.25 x 3.25 inches
- Weight: 0.61 pounds
- Manufacturer warranty: 30-day warranty
