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The Metal-Fab 3CGVSC is a double wall direct-vent strom collar designed for durability and efficiency. Crafted from superferritic stainless steel, this product measures three inches inner diameter by five inches outer diameter. The direct vent system facilitates optimal exhaust for gas-fired appliances. This item complies with UL standards, specifically UL file number 1738.
This direct vent strom collar provides reliable performance while ensuring ease of installation, suitable for Category II, III, and IV gas-fired appliances.
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