Metal-Fab 3 Inch to 7 Inch Type B Round Chimney Pipe Increaser

Features

• Allows connection of 3" and 7" pipe
• .018" galvanized steel outer wall and aluminum alloy inner wall
• Double-wall design allows a 1" clearance to combustibles
• For use with Metal-Fab Type B Round Chimney Pipe
• Secure locking system requires no tools
• Hemmed flue and casing eliminate sharp edges
• 3" end is compatible with other brands of UL Listed round gas vent pipe (see list below)
• Listed to UL 441
• Limited one-year warranty
• Specifications:
• Small End: 3" Dia.
• Large End: 7" Dia.
• Height: 8.5"

• General Products Co. - Airjet
• American Metal Products Co. - Amerivent
• Hart & Cooley - Metlvent
• Household Manufacturing Inc. - Metalbestos and Airmate
• Mitchell Metal Products Inc. - Mitchvent
• Selkirk Metalbestos - Metalbestos
• Simpson Dura-Vent Inc. - DuraVent
• ECCO Heating Products - ECCO Manufacturing