Metal-Fab 7M3 B-Vent Pipe 7″x36″ Double Wall Round Gas Flue Duct HVAC Vent

SKU: MFG# 7M3

Weight	7 lbs
Dimensions	40 × 10 × 10 in

$113.57

In stock — available to order.

Sold individually. Each quantity ordered is one unit. Kits are one complete kit; products sold by length use the stated length unit.

Same-item volume pricing

Quantity	Unit price	Saving
1–4	$113.57	0%
5–9	$107.89	5%
10+	$102.21	10%

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Metal-Fab 7M3 B-Vent Pipe 7"x36" Double Wall Round Gas Flue Duct HVAC Vent

Specifications & product details

Overview

Metal-Fab 7M3 B-Vent Pipe – 7″ Diameter x 36″ Length | Double Wall Round Gas Vent DuctThis Metal-Fab 7M3 B-Vent Pipe is engineered for safe and efficient venting of Category I gas appliances, including LP gas and natural gas heaters, furnaces, and boilers. The double-wall design provides enhanced insulation and durability, while the SureLock™ twist-locking system ensures a secure, code-compliant connection with minimal effort.🔧

Specifications

Size: 7″ Inner Diameter x 36″ LengthMaterial: Galvanized steel outer wall with aluminum inner flueWall Type: Double wallVent Type: Type B Gas Vent (Round)Locking System: SureLock™ tab-lock connection for quick assembly/disassemblyClearance: 1” minimum to combustiblesCompliance: UL Listed for gas venting systems🔎

Applications

Residential and commercial gas water heatersLP or natural gas heating systemsCompatible with other Metal-Fab B-Vent system components🔩 Model: MFG# 7M3🧾 DLP#: 6M736📍 Made in the USA | Brand New | Ships Quickly

Product details

Part / SKU	MFG# 7M3

Package includes

Metal-Fab 7M3 B-Vent Pipe 7"x36" Double Wall Round Gas Flue Duct HVAC Vent

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

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