Metal-Fab 4″x12″ B-Vent Gas Vent Pipe Type B Round Flue 4M12 Galvanized HVAC

Name: Metal-Fab 4"x12" B-Vent Gas Vent Pipe Type B Round Flue 4M12 Galvanized HVAC
SKU: MFG#4M12-dgakzu
Price: 29.09 USD
Availability: InStock

SKU: MFG#4M12-dgakzu

$29.09

In stock

Same-item volume pricing

Quantity	Unit price	Saving
1–4	$29.09	0%
5–9	$27.64	5%
10+	$26.18	10%

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Available to order: 40.

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Product Description

Overview

Metal-Fab 4" x 12" Type B Gas Vent Pipe – Round Double Wall Vent 4M12This Metal-Fab Type B Gas Vent Pipe (Model 4M12) is engineered for safe, efficient venting of Category I gas-burning appliances. The 4-inch diameter, 12-inch length vent pipe features a double-wall construction with a durable aluminum inner liner and a galvanized steel outer shell, providing excellent corrosion resistance and structural integrity.

Ideal for both residential and commercial HVAC systems, the 4M12 includes Metal-Fab’s SecureLock locking system for quick, secure installation and easy disassembly. This pipe is compatible with other B-Vent systems and is rated for natural gas or propane-fueled appliances requiring venting with 1" clearance to combustibles.🔧

Specifications

Vent
Diameter: 4 inchesPipe
Length: 12 inchesDouble-wall: Aluminum inner / Galvanized steel outerUL Listed for safety and performance
Easy push-tab assembly with positive lock
Perfect for HVAC technicians, contractors, and service installers needing reliable gas venting solutions.

Product details

Part / SKU	MFG#4M12-dgakzu

Package includes

Metal-Fab 4"x12" B-Vent Gas Vent Pipe Type B Round Flue 4M12 Galvanized HVAC

Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.