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Metal-Fab 4MPT - 4" 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