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The Von Duprin 3347AEO-F-4 Fire Rated Concealed Vertical Rod Exit Device is a heavy-duty, Grade 1 panic hardware solution designed for fire-rated commercial doors 32"–48" wide and 84" high. Featuring a narrow stile pushpad, concealed vertical rods, and a durable grooved mechanism case, this exit-only device delivers reliable, code-compliant egress while maintaining a clean architectural appearance. It is UL listed, ANSI/BHMA A156.3 certified, non-handed for easy installation, and includes no dogging as required for fire-rated applications, making it ideal for schools, healthcare facilities, retail spaces, and other high-traffic environments requiring dependable life-safety hardware.
Features
| Manufacturer | Von Duprin |
| SKU | 3347AEO-F-4 |
| Grade | Grade 1 |
| Installation | Commercial |
| Origin | — |
| Unit of Measure | Each |
| UL Listing Type | UL 305 |
| ANSI Number | A156.3 2014, Grade 1 |
| Restrictions | None |
| Limited Warranty | 3 Years |
| Fire Rated | Yes |
| Burglar Rated | No |
| Physical Appearance | Narrow Stile Pushpad |
| Device Type | Concealed Vertical Rod |
| Mechanical Function | Exit Only, (Less Trim) |
| Device Length | 48" |
| Handing | Non-Handed |
| Dogging Options | No Dogging |
| Top Strike | 338 |
| Strike Bottom | 385A |
| Includes Trim | No |
| Trim Type | Less trim |
| Includes Cylinder(s) | No |
| Cylinder Type | Non-Keyed |
| Minimum Stile Size | 2-1/8" metal, 4" wood |
| Door Material | Hollow Metal |
| Door Width | 32" - 48" |
| Door Height | 84" |
| Door Thickness | 1-3/4" |
| Fire Rated | Yes |
| Reversible | Yes |
| Product Type | Concealed Vertical Rod Exit Devices |







