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The METAL-FAB 4B90L elbow features factory-built double wall construction with a continuous laser-welded inner flue and casing. It has a 1" clearance to combustibles vent system, rated for continuous use of flue temperatures up to 570 degrees F. Silicone gaskets provide an airtight seal eliminating fly ash leakage. Innovative twist-locking connections rotate 130 degrees.
This 4 inch, 90 degree elbow is suitable for use with biomass fuels such as pellet, corn, wheat or other grassy and woody plants.
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