Duravent 0490EL B-vent Adjustable Elbow 90 Degree 4 in

Product Description

The DURAVENT 0490EL is a 4-inch adjustable elbow designed for Type B gas vent systems. It provides a 90-degree directional change in the vent run, allowing installers to route flue gases from natural gas or propane appliances safely through walls and up through the structure. The adjustable design accommodates field conditions where a fixed elbow angle may not align with existing framing or chase geometry. This fitting is installed by licensed HVAC technicians and plumbers working on vented gas appliance systems.

This elbow is suited for residential and light commercial B-vent installations where the vent connector must make a 90-degree turn. Typical applications include gas furnaces, water heaters, boilers, and other Category I appliances that require Type B double-wall vent pipe. The 4-inch diameter matches common appliance flue collar sizes found in residential construction.

Key Features

• 90-degree adjustable elbow for flexible routing in B-vent systems
• 4-inch diameter fits standard Type B vent pipe of the same size
• Adjustable design accommodates field variations in vent run alignment
• Double-wall Type B construction for safe flue gas routing

Compatibility

Designed as an OEM-style fitting for use with 4-inch Type B double-wall gas vent systems in residential and light commercial applications.

Installation Notes

Installation must be performed by a qualified HVAC technician or licensed plumber in accordance with the appliance manufacturer instructions and the International Fuel Gas Code (IFGC). Shut off gas supply and power to the appliance before disconnecting any vent components. Ensure all vent joints are fully engaged and secured per the vent system manufacturer specifications. Follow local building codes for clearances to combustibles when routing B-vent through framing or enclosures.

Technical Specifications

• Pipe Diameter: 4 inches
• Elbow Angle: 90 degrees
• Vent Type: Type B Double-Wall Gas Vent

Standard Information

• Brand: DURAVENT
• Manufacturer Part Number: 0490EL