Von Duprin 8875-4FT 4 ft Wide ...
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$2,898.00
$2,479.23
Von Duprin 8875-4FT 4 ft Wide Stile Crossbar Mortise Exit Device with Hex Key Dogging

Von Duprin 8875-4FT 4 ft Wide Stile Crossbar Mortise Exit Device with Hex Key Dogging

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Model: 8875EO US26D-4
$2,898.00
$2,479.23
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$2,898.00
$2,479.23
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Von Duprin 8875-4FT 4 ft Wide Stile Crossbar Mortise Exit Device with Hex Key Dogging

Commercial-Grade 88 Series Wide Stile Mortise Exit Device for Single and Double Door Applications

The Von Duprin 8875-4FT is a 4 ft (48") wide stile crossbar mortise exit device from the trusted 88 Series, engineered for demanding commercial applications on single or double doors. Designed to fit stock hollow metal doors with 86 cutouts and door stiles as narrow as 4-3/4" (121 mm), this device features a 3/4" (19 mm) anti-friction latch bolt that is field reversible without removing the lock from the door. The 88 Series carries ANSI/BHMA A156.3, 2008 Grade 1 certification and is UL listed, making it a reliable choice for code-compliant egress solutions in commercial environments. Hex Key Dogging and a non-handed design add operational flexibility across a wide range of door configurations.

Professional Features & Benefits

  • Wide Stile Compatibility: Fits door stiles as narrow as 4-3/4" (121 mm) and accommodates stock hollow metal doors with 86 cutouts, ensuring broad compatibility with standard commercial door preparations.
  • 48" Crossbar Length: Available in a 4 ft (48") length that is field sizeable for single and double door applications, providing installation flexibility on the job site.
  • Anti-Friction Latch Bolt: Equipped with a 3/4" (19 mm) anti-friction latch bolt that is field reversible without removing the lock from the door, simplifying handing changes and service.
  • Non-Handed Design: The non-handed auxiliary bolt for deadlocking and overall non-handed configuration allows use on either hand of door without special ordering, reducing inventory complexity.
  • Hex Key Dogging: Standard hex key dogging allows the crossbar to be held in the retracted position for high-traffic periods, improving convenience in appropriate applications.
  • ANSI/BHMA Grade 1 Certified: Meets ANSI/BHMA A156.3, 2008 Grade 1 standards as well as ANSI/UL 305 and CAN/ULC-S132, confirming compliance with rigorous commercial performance and safety requirements.
  • Electric Locking Options Available: Electric locking or unlocking options, including the E8875 option, allow the device to pair with access control systems, fire alarm systems, or remote switching stations for integrated security solutions.
  • Versatile Trim & Function Options: Supports multiple trim functions including Classroom, Dummy, Exit Only, Passage, and Storeroom. Popular 990 pull trim comes standard with five selectable functions. TP and K functions are field selectable via a set screw in the mortise lock body.
  • Monitoring Option (RX): Optional RX switch monitors door opening status; when the push bar is depressed, a signal is sent to a monitoring device for integrated building management.
  • Knurling Option (KN): Optional knurling on crossbars provides a tactile warning to indicate doors leading to hazardous areas such as stairs, loading platforms, or boiler rooms.

Technical Specifications

  • Product Group: Exit Devices and Trim
  • Series: 88 Series
  • Grade: Grade 1
  • Device Centerline: 39-13/16"
  • Fasteners: All necessary mounting fasteners are included
  • Product Subgroup: Exit Devices - Mortise
  • Subcategory: Mortise Exit Devices
  • Latch Throw: 3/4"
  • Product Type: Exit Devices - Mortise
  • Commercial/Residential: Commercial
  • Stile Type: Wide Stile
  • Wood Door Compatible: No
  • Door Hand Direction: Non-Handed
  • Door Thickness Range: 1-3/4"
  • Product Size: 48"
  • Dogging Configuration: Hex Key Dogging
  • Fire Rating: No
  • Product Style: Cross Bars
  • Product Category: Exit Devices and Trim
  • Department: Door Hardware

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose Von Duprin Quality?

Von Duprin 88 Series mortise exit devices are built to meet the most demanding commercial egress requirements, carrying ANSI/BHMA A156.3, 2008 Grade 1 certification along with ANSI/UL 305 and CAN/ULC-S132 compliance. The 8875-4FT features a field-reversible 3/4" anti-friction latch bolt, non-handed operation, and a wide range of trim and electronic options that adapt to virtually any facility need. Engineered for commercial applications where dependable, code-compliant performance is essential, Von Duprin exit devices deliver the reliability that security professionals trust.

Manufacturer Resources

Von Duprin 98/99 Series Catalog

Product Specs

Product Group:
Exit Devices and Trim
Series:
88 Series
Grade:
Grade 1
Device Centerline:
39-13/16"
Fasteners:
All necessary mounting fasteners are included
Product Subgroup:
Exit Devices - Mortise
Subcategory:
Mortise Exit Devices
Latch Throw:
3/4"
Product Type:
Exit Devices - Mortise
Commercial/Residential:
Commercial
Stile Type:
Wide Stile
Wood Door Compatible:
No
Door Hand Direction:
Non-Handed
Door Thickness Range:
1-3/4"
Product Size:
48"
Dogging Configuration:
Hex Key Dogging
Fire Rating:
No
Product Projection:
04/07/2008
Product Style:
Cross Bars
Product Category:
Exit Devices and Trim
Department:
Door Hardware

Von Duprin 8875EO US26D-4 – Frequently Asked Questions

1) Do I have to order the Von Duprin 8875 exit device handed?
Handing is picked on the order form (RHR or LHR), but the device itself is non-handed. The 3/4 inch anti-friction latch bolt is field reversible without pulling the lock out of the door, and the auxiliary deadlocking bolt is non-handed too. So if the hand is called wrong on the submittal, it is a field fix, not a return.
2) Will a 48 inch exit device work on a 36 inch door, or do I need to cut it down?
The 4 ft (48 inch) crossbar is field sizeable, so it can be cut to suit single or double door leaves rather than only fitting a 48 inch opening. Mount it to the device centerline of 39-13/16 inches. All the mounting fasteners come in the box.
3) What mortise exit device should I use on a narrow stile aluminum storefront door instead of the Von Duprin 8875?
The 8875-4FT is built for wide stile openings and fits stiles as narrow as 4-3/4 inches on hollow metal doors, so it will not suit an aluminum storefront with a narrow stile. The Adams Rite 8400 Series is a Grade 1 narrow stile mortise exit device made for aluminum doors and is the closer fit there. If the narrow stile opening needs a night latch function so the outside trim retracts the latch with a key, the Sargent 8304 is a Grade 1 narrow stile mortise exit device in night latch function.
4) What is the closest wide stile mortise exit device to the Von Duprin 8875 from another manufacturer?
The Von Duprin 8875-4FT is a Grade 1 wide stile mortise exit device for 1-3/4 inch doors. The Adams Rite 8300 Series matches most closely on paper: Grade 1, wide stile, life safety rather than fire rated, and built for wood and hollow metal doors. The Corbin Russwin ED5600AL is also Grade 1 wide stile for 1-3/4 inch doors, though it is fire rated. The Detex 30 Series Advantex is a Grade 1 wide stile mortise device that, like the 8875, is not for wood doors.
5) Should I use a mortise exit device or a rim device on my opening?
A mortise exit device like the Von Duprin 88 Series latches into the frame from a lock body mortised into the door edge, so the door needs an 86 mortise cutout, standard on stock hollow metal doors. That buys you a single, concealed latching point with a 3/4 inch throw and a deadlocking auxiliary bolt, plus full lever, knob, and thumbpiece trim off the mortise body. A rim device is the easier retrofit when the door has no mortise pocket, and a surface vertical rod is what you use to latch a pair of doors with no center mullion at head and sill. Pick the mortise device when the door is already prepped for one and you want the trim options.
6) What trim functions can I get on the Von Duprin 8875 mortise exit device?
Eleven trim functions: exit only (EO), night latch (NL), knob (K, K-BE, K-DT), lever (L, L-BE, L-DT), thumb piece (TP, TP-BE), and dummy trim (DT). Levers come in 06 (default), 01, 02, 03, 07, and 17 styles. TP and K functions are field selectable with a set screw in the mortise lock body, and the 990 pull trim ships with five selectable functions, so one device covers classroom, storeroom, passage, dummy, or exit only without a re-order.
7) How do I hold the exit device unlatched during business hours?
Hex key dogging is standard on the 8875. Insert the hex key and the crossbar holds in the retracted position, so the door pushes free during high traffic and re-secures when you undog it. This is only available because the device is not fire rated; dogging is not permitted on a labeled opening.
8) Can the Von Duprin 8875 be tied into an access control system?
Yes. Electric locking or unlocking is available, including the E8875 option, which lets the device work with access control, fire alarm, or a remote switching station. For monitoring, add the RX request to exit switch, which signals a monitoring device whenever the push bar is depressed. RX is a separate option from the electric locking, so specify both if you need door status and remote control.
9) Will the 3/4 inch latch on this exit device work with my existing mortise strike?
The 88 Series mortise lock throws a 3/4 inch (19 mm) anti-friction latch bolt into the frame strike, with a separate auxiliary bolt that deadlocks it. If the frame is already prepped for a standard mortise exit device strike on a 1-3/4 inch hollow metal opening, the geometry lines up. What decides the retrofit is the door: it must have the 86 mortise cutout and at least a 4-3/4 inch stile.
10) Can I standardize the same exit device across every door in my facility?
That is what this device is built for. It is non-handed, the latch bolt reverses in the field, the crossbar is field sizeable from 48 inches, and TP and K functions swap with a set screw in the lock body. So one part number stocked on the shelf covers left and right hand openings, different leaf widths, and several trim functions, which cuts down what a maintenance department has to carry. The limits to watch: hollow metal doors only, 1-3/4 inch thickness, and no fire rated openings.
11) I need lever trim on a wide stile mortise exit device. How does the Von Duprin 8875 compare to the Corbin Russwin ED5600AL?
The Von Duprin 8875-4FT is ordered with the lever trim function and the lever style selected as part of the device, in 06, 01, 02, 03, 07 or 17 lever, across finishes including 626 satin chrome and 613 oil rubbed bronze. The Corbin Russwin ED5600AL is a Grade 1 wide stile mortise device for 1-3/4 inch doors supplied exit only or for use with classroom or passage lever trim, with that trim ordered separately. Both are Grade 1 wide stile for a 1-3/4 inch door; the ED5600AL is 3 hour fire rated while the 8875-4FT is not.
12) Is there a simpler exit-only mortise device if I do not need outside trim?
The Von Duprin 8875-4FT covers exit only along with knob, lever, thumb piece and night latch trim functions, so it is specified when the opening may need outside trim now or later. If the door will never take outside trim, the Falcon 25-M-EO is a Grade 1 wide stile mortise device supplied exit only for 1-3/4 inch doors, and the BEST Precision 2301 Series is an exit only mortise device with heavy wrought construction. The Detex 30 Series Advantex is also supplied as a device only, exit only, Grade 1 wide stile.
13) Can a Sargent 810 dummy pull be used in place of the Von Duprin 8875 dummy trim?
No, those are different pieces of hardware. The Von Duprin 8875-4FT is a complete crossbar mortise exit device with a 3/4 inch latch throw, hex key dogging and a device centerline of 39-13/16 inches; DT dummy trim is one of its trim function selections, not the whole part. The Sargent 810 is exit device trim only, a Grade 1 dummy pull in the PE80 Series, so it mounts to a device rather than replacing one. It is what you order when the device is already on the door and only the pull needs to change.
14) Will a Sargent 1256NB-8710G work as a substitute for a Von Duprin 8875 mortise exit device?
It solves a different opening. The Von Duprin 8875-4FT is a wide stile mortise device, 48 inches, with a 3/4 inch latch bolt into a mortise lock body in the edge of the door. The Sargent 1256NB-8710G is a Grade 1 narrow stile surface mount vertical rod device, 84 inches, fire rated, with electric latch retraction. Vertical rod hardware latches top and bottom rather than at the strike jamb, so the door prep, the strike work and the stile it fits are all different.
15) What finish options match the rest of the hardware in my building?
Nine finishes on the 88 Series crossbar device: 605 bright brass, 606 satin brass, 612 satin bronze, 613 oil rubbed bronze, 619 satin nickel, 625 bright chrome, 626 satin chrome, 643E aged bronze, and 693 black. 626 satin chrome and 630-family stainless looks are the usual commercial standard, so if the other openings in the building are chrome or brushed, 626 is the match.
16) What is the knurled crossbar option on an exit device for?
Knurling (the KN crossbar) is a raised tactile texture on the bar that warns by touch that the door leads somewhere hazardous, stairs, a loading platform, a boiler room. It is a code-driven choice in a lot of facilities. The 8875 also offers RCB, a reinforced crossbar, for abuse-prone openings, alongside the standard bar.
How fast can I get the Von Duprin 8875EO US26D-4 delivered?
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Can I return it if it doesn’t work for me?
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Does the Von Duprin 8875EO US26D-4 come with a warranty?
Absolutely. The Von Duprin 8875EO US26D-4 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Von Duprin 8875EO US26D-4?
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