


Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The Metal-Fab 4M4SY3 B-Vent is designed for use with approved category 1 gas appliances including furnaces, heaters, and boilers. The double-wall construction is suitable for residential and commercial installations where clearance to combustible materials is necessary.
This product eliminates sharp edges through hemming of the flue and casing, supporting safe installation.
Thanks for subscribing!
This email has been registered!
