Product Description
RX9975L-DT-05-F 4 US28 LHR Von Duprin 99 Series Dummy Trim Fire Rated Mortise Lock Exit Device in Anodized Aluminum
The RX9975L-DT-05-F 4 US28 LHR is a Von Duprin 9975 Series Mortise Lock exit device with L-05 Lever trim in Anodized Aluminum (US28/628), sized for 4' doors. Dummy Trim — non-functional outside pull for appearance. Provides a handle on the outside without any latch control. No cylinder required for this function.
Request to Exit — Request to Exit switch signals the access control system when the exit device is activated. 24VDC.
Fire Rated — UL listed for use on fire-rated openings. Mechanical dogging is deleted per UL code on fire-rated models. 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 | RX9975L-DT-05-F 4 US28 LHR |
| Brand | Von Duprin (Allegion) |
| Series | Von Duprin 9975 |
| Function | Dummy Trim |
| Lever Design | L-05 Lever |
| Grade | ANSI/BHMA A156.3 Grade 1 |
| Mount Type | Mortise Lock (mortise body recessed into door edge) |
| Finish | Anodized Aluminum (US28/628) |
| Handing | Left Hand Reverse (LHR) |
| Door Size | 4 Foot |
| Cylinder | No cylinder required for this function |
| Fire Rating | Fire Rated — UL Listed |
| Electronics | Request to Exit |
- Von Duprin 9975 Series touch bar mechanism — Grade 1 architectural-grade panic hardware
- Mortise Lock (mortise body recessed into door edge)
- L-05 Lever trim — pull operation from outside
- Anodized Aluminum finish
- Request to Exit — Request to Exit switch signals the access control system when the exit device is activated
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.
