Metal-Fab 4MPT - 4" Type-B Gas Vent Partition Thimble

Metal-Fab is the only B-Vent manufacturer with UL approval to connect the male end into the female end of all competitive UL listed B-Vent brands, increasing product versatility. Did you know that by simply connecting using three (3) quarter inch sheet metal screws to secure creates a UL listed connection?

Features

Type B Gas Vent
For use with approved gas furnaces, heaters, fireplaces and boilers
Meets or exceeds all recognizes gas venting codes
UL listed to adapt to identified competing B-Vent brands.
1" Minimum clearance to combustibles for 3" through 24" diameters
For 4" Type-B Round Gas Vent
Inner Diameter: 6.69"
Outer Diameter: 9"

^HSS1810250

Collection: Wall Thimbles

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4MPT - 4" Type B Gas Vent Partition / Wall Thimble