

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 FAMCO SWV4 is a 4-inch galvanized steel wall vent designed for through-wall ventilation applications in residential and light commercial construction. Built from galvanized steel for corrosion resistance, this vent includes an integrated screen to block pests and debris from entering the duct opening. It is a single-unit product suited for exhaust or intake terminations where a durable, metal wall cap is required. HVAC technicians, plumbers, and general contractors install this type of fitting as a termination point for dryer vents, bath exhaust fans, range hoods, and similar 4-inch duct runs.
The SWV4 is used where a round duct penetrates an exterior wall and requires a weather-resistant termination. Its 4-inch size matches standard residential duct diameters common to bath exhaust, dryer, and small inline fan applications. The galvanized steel construction holds up in outdoor exposure conditions better than plastic alternatives, making it appropriate for installations where long-term durability at the wall face matters.
Designed as an OEM-style termination fitting for 4-inch round duct systems in residential and light commercial ventilation applications.
Installation is typically performed by HVAC technicians or general contractors during new construction or duct system service. Power down any connected fan or appliance before beginning work at the wall penetration. Follow local building codes and manufacturer clearance requirements for exterior vent terminations. Ensure the screen is seated and secured before completing the installation to maintain pest exclusion performance.
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!