Product Description
78NL-OP-US4-4 Von Duprin 78 Series with 110MD/WD Night Latch Rim Exit Device in Satin Brass
The Von Duprin 78NL-OP-US4-4 is a crossbar rim exit device for storefront and aluminum doors. Night Latch with Optional Pull — outside lever locks and unlocks by key with optional pull handle. Inside always free for egress. Ships less cylinder — order a mortise cylinder separately to match your existing keyway.
The 78 Series crossbar provides a wide activation zone across the full width of the door — maximum push area for emergency egress. Available in 4-foot width. Non-handed design works for both LHR and RHR door swings. UL listed for panic exit hardware with hex key dogging standard. ANSI/BHMA A156.3 Grade 1 certified.
Pro-Tip from Our Locksmiths: The 78 Series rim device gives you a crossbar exit on wide stile storefront doors. Available in both 3-foot and 4-foot widths. If you're coming from a 22 Series pushpad, note the 78 crossbar has a wider activation zone — better for ADA compliance on high-traffic entries.
| Specifications | |
|---|---|
| Part Number | 78NL-OP-US4-4 |
| Function | NL-OP - Night Latch Optional Pull |
| Grade | ANSI/BHMA A156.3 Grade 1 |
| Mount Type | Rim (horizontal latch bolt — strikes into frame on lock side) |
| Door Width | 4-Foot (48") |
| Door Material | Aluminum, Glass, Hollow Metal |
| Outside Trim | Included |
| Warranty | 5-Year Mechanical |
- Crossbar design — wide activation zone across full door width
- Non-handed — same device fits LHR and RHR door swings
- Hex key dogging standard — holds latch retracted during business hours
- Satin Brass (US4/606) finish
Works With: For pairs of doors, see the 7827 Surface Vertical Rod or 7847 Concealed Vertical Rod. For narrow stile doors, see the 55 Series.
Free Expert Support — As an authorized Von Duprin distributor, Lock Depot provides full manufacturer warranty coverage and same day shipping on most orders. Call (877) 365-5625 for personalized help.
Image shown is representative of the product line. Actual finish, trim, and configuration may vary by SKU.
