Free shipping
Low Price
View Cart
Order Online Or Call

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

List Price:
Sale Price:
You Save:
$10.04 (25%)
In Stock.
* Usually Ships Same Business Day.
In Stock.
* Usually Ships Same Business Day.

Item Description
Ask & Answer
Connecting pipeline of differing diameters is made easy with this chimney pipe increaser from Metal-Fab. The pipe is 8.5 inches long with a 3-inch diameter on one end and a 7-inch diameter on the other. This chimney pipe has a galvanized steel outer wall for protection from corrosion and an aluminum alloy inner wall for safety. The double wall design also allows for a minimum of 1 inch of clearance to combustibles. Installation is simple with the secure locking system; no tools are necessary. Hemmed flue and casting make installation safer by creating smooth edges. The 3-inch end conveniently connects to a variety of other brands of UL listed round gas vent pipe. Simplify your chimney pipe installation with this chimney pipe increaser.
* Venting Requirements: This unit requires venting pipe with an inner diameter of 3 Inches. Please see the Venting tab on this page for venting pipe that must be used with this unit.
  • 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"
3" to 6" pipe sizes are compatible with the following brands of Type B gas vent pipe :
  • 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
Manufacturer: Metal-Fab
Part Number: 3MIX7
Elite Deals Item Number: MFB-3MIX7
UPC: 622417100700

There are no questions or answers for this item.

Product Reviews
Metal-Fab 3 Inch to 7 Inch Type B Round Chimney Pipe Increaser
$ 29.95