Duravent 3GVVTH Type B Gas Vent Cap 3 Inches

Product Description

The DURAVENT 3GVVTH is a Type B gas vent cap designed for terminating gas appliance venting systems at the rooftop or exterior wall. It features double-wall construction with an aluminum inner wall and a galvanized steel outer wall, providing corrosion resistance and structural durability in outdoor conditions. Sized for 3-inch vent pipe, this cap is intended for use exclusively with DURAVENT B-Vent pipe and fittings to maintain code compliance. Licensed HVAC technicians and gas appliance installers are the typical end users for this component.

This vent cap suits residential and light commercial gas appliance venting applications where Type B double-wall B-Vent systems are required. Typical installations include natural gas furnaces, water heaters, boilers, and other Category I gas appliances that require a listed vent termination cap. The cap terminates the vent run and prevents backdraft, rain intrusion, and debris entry at the vent outlet. Per the manufacturer, it must be used only with DURAVENT B-Vent pipe and fittings to comply with applicable codes.

Key Features

• Type B rated for gas appliance venting applications
• Double-wall construction for thermal performance and structural integrity
• Aluminum inner wall resists corrosion from flue gases
• Galvanized outer wall provides weather and UV resistance
• 3-inch diameter fits standard B-Vent pipe of the same size
• Must be used exclusively with DURAVENT B-Vent pipe and fittings for code compliance

Compatibility

Designed for use exclusively with DURAVENT B-Vent pipe and fittings in Type B gas vent systems for Category I gas appliances.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified gas appliance installer in accordance with the appliance manufacturer instructions, NFPA 54, and local mechanical codes. Shut off gas supply and allow the appliance and vent system to cool completely before servicing or installing vent components. Ensure all vent sections and the cap are properly locked and secured per the DURAVENT installation guidelines. Do not mix B-Vent components from different manufacturers, as this cap must be used only with DURAVENT fittings to maintain a listed assembly.

Technical Specifications

• Vent Type: Type B Gas Vent
• Diameter: 3 inches
• Wall Construction: Double Wall
• Inner Wall Material: Aluminum
• Outer Wall Material: Galvanized Steel
• Weight: 4.9 pounds
• Unit of Measure: Each
• Package Quantity: 6

Standard Information

• Brand: DURAVENT
• Manufacturer Part Number: 3GVVTH