High-quality 4mf-12 - Type B Gas Vent Roof Flashing - 5/12 To 12/12

4MF-12 Type B Gas Vent Roof Flashing

Introducing the Metal-Fab 4MF-12 Type B Gas Vent Roof Flashing, a versatile and reliable solution for your gas venting needs. This product is designed to connect with all competitive UL listed B-Vent brands, thanks to Metal-Fab's unique UL approval. This means you can enjoy the flexibility of using different brands without compromising on safety and performance. With the ability to create a UL listed connection using just three quarter-inch sheet metal screws, the 4MF-12 offers an easy and secure installation process.

Material and Specifications

The 4MF-12 is constructed with high-quality materials to ensure durability and longevity. The outer wall is made of galvanized steel, .018" thick G-90 for sizes 3" to 14" diameter, and .024" thick G-90 for sizes 16" to 30" diameter. The inner wall is crafted from aluminum alloy, .012" thick for sizes 3" to 8" diameter and .018" thick for sizes 10" to 30" diameter. This combination provides both strength and lightweight construction. Additionally, the vent features an integral, annular insulating air space that enhances efficiency and safety.

Features and Benefits

Key features of the 4MF-12 include its compatibility with approved gas furnaces, heaters, fireplaces, and boilers, meeting or exceeding all recognized gas venting codes. The product is also UL listed, making it adaptable to various competing B-Vent brands. It offers a minimum clearance of 1" to combustibles for diameters from 3" to 24", ensuring safe operation. The SureLock B-Vent Locking System further enhances the product's reliability, providing a positive twist lock that cannot be twisted apart, ensuring a secure connection. With these features and specifications, the Metal-Fab 4MF-12 Type B Gas Vent Roof Flashing is a top choice for professional installers and homeowners alike.