4" MC Conn Flex-Vent Non-Insulated Air Connector

Flex-Vent MC Is A Strong Polyester Film Laminated and Encapsulating A Heavy, Corrosion Resistant Steel Wire Helix, Forms the Inner Core and Supports A Thick Blanket Of Fiberglass Insulation. Outer Vapor Barrier Is Bi-Directional Scrim Reinforced Gray Polyester. Designed For Low To Medium Pressure Systems.

Flex-Vent Advantages:

• Fast, Economical Installation.
• Oversized Cores For Proper Fit.
• Easily Shaped To Fit Oval Inlets.
• Superior Insulation and Thermal Performance.
• UL181 Listed and Complies with NFPA Standards 90A and 90B.
• Complies with Most State and Federal Standards or Codes.
• Ideal For Residential Air Distribution and Venting Applications.
• Flex-Vent Is Competitively Priced and Backed By A 5 Year Warranty.

Specs:

• Diameter: 3-18 Inches ID
• Pressure Rating: (Wg)
• Positive: 10 Inches (3"-18" ID)
• Negative: 1 Inch (3"-12" ID)1/2 Inch (14"-18" ID)
• Velocity: 5000 Fpm
• Temperature Range: -20F To 250F
• 5 Year Warraty

Meets UL 181 and NFPA 90A-90B Fire Codes