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Metal-Fab 4M18 Type B Round Chimney Pipe Length - 4 Inch x 18 Inch

SKU: 204315

Save 65% · Retail: $18.91

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$6.61/ea 7
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About the Metal-Fab 4M18

Metal-Fab 4M18 4" Style M B-Vent 18" Length. These light commercial and residential B-Vents feature a positive twist locking system designed for easy assembly and dis-assembly without bending or harming the product. The B-Vent Locking System comes standard on 3"- 6" pipes. The Metal-Fab 4M18 4" Style M B-Vent 18" Length also features a patented locking system ideal for a secure lock. This shorter run is ideal for getting the air vented and making runs without cutting and ruining the pipe.

Product Details

Mpn # 4M18
Weight 1.80 lbs.

Product Features

  • Effectively vents Category: appliances such as gas-fired fireplaces, furnaces, water heaters, and boilers
  • .018" galvanized steel outer wall and .012" aluminum alloy inner wall
  • 1/4" insulating air space
  • Double-wall design allows a 1" clearance to combustibles
  • SureLock locking system creates secure connections without tools
  • Hemmed flue and casing eliminate sharp edges
  • Compatible with other brands of 4" UL Listed round gas vent pipe (see list below)
  • Listed to UL 441
  • Limited one-year warranty
  • Approximate Dimensions: 4" inner diameter x 18" L
  • Please Note: Pipe overlaps 1.5" when joined together. Therefore, the assembled length is 1.5" less than listed.


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