Duravent 4DV60 B-vent Flex Connector Pipe 4x60 in

Product Description

The DURAVENT 4DV60 is a double wall air-insulated flexible B-vent connector pipe designed for Category I gas appliance venting applications. Measuring 4 inches in diameter and 60 inches in length, it provides the extra reach needed when a rigid vent run is impractical or when routing around obstacles. The double wall air-insulated construction maintains proper draft performance while allowing the flexibility required for alignment between an appliance collar and the main vent stack. Licensed HVAC technicians and plumbers install this type of connector as part of a compliant B-vent system.

This flex connector is suited for residential and light commercial installations where a Category I gas appliance requires a longer or angled connection to the vertical vent stack. Typical applications include gas furnaces, water heaters, and boilers vented with Type B double wall vent pipe. The 60-inch length accommodates installations where the appliance sits farther from the main chase or where the vent must navigate around structural elements without the use of multiple rigid elbows.

Key Features

• 4-inch diameter matches standard Category I appliance collars and B-vent fittings
• 60-inch flexible length provides extended reach for complex or offset vent routing
• Double wall air-insulated construction supports proper flue draft and reduces exterior surface temperature
• Flexible design simplifies alignment between appliance outlet and rigid vent sections
• Intended for Category I gas appliance venting systems

Compatibility

Designed as an OEM-style replacement and new-installation connector for Category I gas appliance B-vent systems using 4-inch Type B double wall vent components.

Installation Notes

Installation must be performed by a licensed HVAC technician or plumber in accordance with the appliance manufacturer instructions and applicable codes, including the International Fuel Gas Code (IFGC) and NFPA 54. Shut off the gas supply and allow the appliance to cool completely before disconnecting or replacing any vent connector. Avoid sharp bends that could restrict flue gas flow or reduce the effective cross-sectional area of the connector. Secure all joints per local code requirements and verify the system maintains the required slope and clearances before returning the appliance to service.

Technical Specifications

• Diameter: 4 inches
• Length: 60 inches
• Construction: Double Wall Air-Insulated
• Vent Type: Type B B-Vent
• Application: Category I Gas Appliance Venting

Standard Information

• Brand: DURAVENT
• Manufacturer Part Number: 4DV60