METAL-FAB B-Vent 90 Degree Adjustable Double Wall Elbow - 4M90

4" Elbow

Metal-Fab's round and oval Type-B vent is listed by Underwriters Laboratories for use with approved category 1 gas furnaces, heaters, and boilers. A category 1 appliance operates with a non-positive vent static pressure. The double wall design of B-vent enables the product to be used in homes and commercial buildings at close clearance to combustible. Metal-Fab's B-vent design incorporates features that make installation quick, easy, and safe. Some of those features are: 

* Elimination of sharp edges by hemming the flue and casing. 

* Assembly and disassembly, without tools, using positive twist lock. 

* 360 degree rotation of small diameter fittings using swivel tees, wyes, and elbows. 

* Space savings inside standard stud walls using oval pipe. 

UL listed to mate with other specifically identified and listed round gas vent, 3''-6'' diameters, allowing you to add a new run of Metal-Fab B-vent to an existing run of common vent. B Vent Metal-Fab 3''-6'' diameter B-vent pipe is standard with the Surelock B-Vent Locking System . The patented locking system provides a secure lock with just the push of a tab, and can be easily disassembled by pulling the tab back out. 


We CAN NOT  ship to Alaska, Hawaii, Puerto Rico, APO/FPO addresses,  or P.O. Boxes. 

Orders will be cancelled/refunded if correct address is not provided.

SALES TAX: 8.25% will be charged to shipments to Texas.

(No Reserve Price Set. After auction ends, last bidder will get the item)

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