Metal–fab 3M4 Type B Round Chimney Pipe Length – 3 Inch X 48 Inch

Product Features

• Class B Gas vent pipe for furnaces; unit, wall and water heaters.
• Elimination of sharp edges by hemming the flue and casing.
• Incorporates features that make installation quick, easy, and safe.
• Easy assembly and disassembly, without tools, using positive twist lock.
• 360 degree rotation of small diameter fittings using swivel tees, wyes, and elbows.
• Saves space inside standard stud walls using oval pipe.
• Operates with a non-positive vent static pressure.
• Enables the product to be used in homes and commercial buildings at close clearance to combustible.
• Listed by Underwriters Laboratories for use with approved category 1 gas furnaces, heaters, and boilers.
• 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 3" UL Listed round gas vent pipe (see list below)
• Listed to UL 441
• Limited one-year warranty
• Approximate Dimensions: 3" inner diameter x 48" L
• Please Note: Pipe overlaps 1.5" when joined together. Therefore, the assembled length is 1.5" less than listed.