




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 4MVC is a four-inch round Type B gas vent collar designed for use in HVAC systems. This collar is ideal for connecting gas appliances to venting systems, ensuring safety and efficiency in operation.
This gas vent collar features a twist-lock connection which simplifies installation and enhances system reliability.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!


