Product Description
9975EO-US28-4 Von Duprin 9975 Series Exit Only Mortise Lock Exit Device in Anodized Aluminum
The 9975EO-US28-4 is a Von Duprin 9975 Series Mortise Lock exit device in Aluminum (US28/628), sized for 4' doors. Exit Only — push bar operation from inside only, no outside trim. Free egress from inside. No cylinder required for this function.
ANSI/BHMA A156.3 Grade 1 certified. Hex key dogging standard. Field reversible handing.
Pro-Tip from Our Locksmiths: The 9975 is the most complex exit device in the Von Duprin lineup. It has the most moving parts and requires the most precise door prep. When quoting 9975 jobs, add time for mortise pocket verification and potential adjustment. Get it right and it's bulletproof — rush it and you'll be back.
| Specifications | |
|---|---|
| Part Number | 9975EO-US28-4 |
| Brand | Von Duprin (Allegion) |
| Series | Von Duprin 9975 |
| Function | Exit Only |
| Grade | ANSI/BHMA A156.3 Grade 1 |
| Mount Type | Mortise Lock (mortise body recessed into door edge) |
| Finish | Aluminum (US28/628) |
| Door Size | 4 Foot |
| Cylinder | No cylinder required for this function |
| Fire Rating | Non Fire Rated |
- Von Duprin 9975 Series touch bar mechanism — Grade 1 architectural-grade panic hardware
- Mortise Lock (mortise body recessed into door edge)
- Aluminum finish
- Hex key dogging standard — hold latch retracted during business hours
Image shown is representative of the product line. Actual finish, trim, and configuration may vary by SKU.
