Product Description
The Metal-Fab 3M4 is a double wall, round, Type B gas vent pipe. This vent pipe is designed for use with natural gas and propane appliances. It measures three inches in diameter and four feet in length. The outer casing is made from G90 galvanized steel while the inner wall is composed of aluminum alloy. This design meets UL 441 standards.
- Twist-Lock end type for easy installation.
- Suitable for use with gas boilers, fireplaces, and unit heaters.
- Temperature rating of five hundred thirty degrees Fahrenheit.
Product Highlights
This vent pipe offers a reliable solution for venting gas appliances efficiently.
Product Information
Standard Information
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Brand: Metal-Fab
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MPN: 3M4
Technical Specifications
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Type: Double Wall, Round, Type B Gas Vent
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Diameter: 3 inches
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Length: 4 feet
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End Type: Twist-Lock
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Material Thickness: 0.012 inches (Inner Wall), 0.018 inches (Outer Wall)
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Temperature Rating: 530 degrees Fahrenheit
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Applicable Standards: UL 441, NFPA 54/211
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Clearance: 1 inch
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Applications: Gas boiler, fireplace, furnace, unit heater, radiant tube heater
