Deflecto Dryer Vent 4 Inch
- 4 inch duct size, wall mount hood
- Galvanized steel, powder coated finish
- Gravity damper opens with airflow
- Backdraft damper and screws included
- 14.5 inches deep, 9.6 ounces
- Wide mouth shroud against the elements
Last refreshed Jun 15, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A passive outdoor cap with a built in damper for clothes dryers and bath fans. It is a simple metal part with no fan, and the listing contains some unrelated electrical entries.
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ASIN: B003YCDMJCModel: GVH4NRCategory: Dryer Vents
Overview
Not a powered fan, this Deflecto is an all metal wall vent hood with a short pipe for dryer or bathroom exhaust. A gravity damper stays shut on its own and opens when air flows out, and the wide shroud helps keep weather and animals out.
The galvanized build and the self closing damper protect the opening from birds, rodents and weather. The limitation is that it is only the terminating hood, so the duct run and any fan are separate.
Who it's for
Homeowners and installers who need a durable outdoor termination for a dryer or bath duct will find it simple to fit. Anyone wanting powered ventilation, a roof cap or a different duct diameter should choose another product.
Pros and cons
- All metal galvanized steel build
- Self closing gravity damper
- Wide shroud blocks the elements
- Hardware and damper included
- No fan, passive only
- Unrelated electrical entries in specs
- Single duct size
Performance notes
The damper is held shut by gravity and pushed open by outgoing air, so it closes again when the dryer or fan stops. The wide shroud directs rain and debris away from the opening. The copy calls the metal durable and weather resistant.
Specifications
| Brand | Deflecto |
|---|---|
| Model | GVH4NR |
| Dimensions & fit | |
| Duct size | 4 inches |
| Item Dimensions D x W x H | 14.5 x 6 x 6 inches |
| Item weight | 9.6 ounces |
| Construction & materials | |
| Material Type | Galvanized alloy steel |
| Color | Gray |
| Finish | Powder coated |
| Compatibility & installation | |
| Mounting Type | Wall mount |
| Included components | |
| Included Components | Backdraft damper, screws |
| Other details | |
| Additional Features | Positive action vent closure, gravity damper |
| Design | Wall mounted canopy hood |
Closest rivals on specs
Westland VID403AC Deluxe Dryer Vent Kit- Item Weight 0.6 vs 1.2 pounds (-50%)
Westland VID403A Deluxe Dryer Vent Kit- Item Weight 0.6 vs 1.4 pounds (-57%)
Frequently asked questions
What comes with the Deflecto GVH4NR?
The specs list a backdraft damper and screws, and the title says the hood comes with pipe.
Is the Deflecto GVH4NR a powered exhaust fan?
No. The copy describes a gravity damper opened by positive air flow, not a motorized fan.
What can the Deflecto GVH4NR vent?
The copy says it is commonly used for clothes dryer and bathroom applications.
Why does the Deflecto GVH4NR list noise and light entries?
The listing includes some generic ventilation fields such as decibels and LED light that do not match a plain metal hood, so they should be ignored.