Duravent 3DV36 B-vent Flex Connector Pipe 3x36 in

Product Description

The DURAVENT 3DV36 is a flexible B-vent connector pipe designed for connecting Category I gas appliances to Type B vent systems where rigid alignment is not practical. Built with double wall air-insulated construction, the 3DV36 measures 3 inches in diameter and 36 inches in length, providing the flexibility needed to bridge offsets between appliance flue collars and vertical vent runs. Licensed HVAC technicians and gas appliance installers use this connector when routing from furnaces, water heaters, and similar Category I appliances to an existing vent system.

This flex connector is suited for residential and light commercial installations where a rigid connector would not accommodate the appliance position or existing vent layout. It fits between the appliance outlet and the main vent run, handling the transition without requiring extensive repositioning of the appliance or vent stack. It is appropriate for Category I gas appliance venting applications requiring a Type B double wall connector.

Key Features

• Double wall air-insulated construction maintains flue gas temperature for proper draft
• 3-inch diameter fits standard Category I appliance flue collars
• 36-inch length provides reach for offset and angled connections
• Flexible design accommodates alignment variations between appliance and vent system
• Designed for Type B vent system installations

Compatibility

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

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified gas appliance installer in accordance with the appliance manufacturer instructions and applicable local mechanical codes. Shut off the gas supply and allow the appliance to cool before disconnecting any existing vent components. Verify that the connector diameter matches both the appliance flue collar and the receiving vent pipe before installation. Do not exceed the maximum connector length or offset angle specified by the appliance manufacturer or local code authority.

Technical Specifications

• Diameter: 3 inches
• Length: 36 inches
• Construction: Double wall air-insulated
• Vent Category: Category I
• Vent Type: Type B (B-Vent)

Standard Information

• Brand: DURAVENT
• Manufacturer Part Number: 3DV36