Von Duprin 8875F-3FT Fire Rate...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$3,164.00
$2,706.79
Von Duprin 8875F-3FT Fire Rated Wide Stile Crossbar Mortise Exit Device, Less Dogging, 36"

Von Duprin 8875F-3FT Fire Rated Wide Stile Crossbar Mortise Exit Device, Less Dogging, 36"

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Model: 8875EO-F US26D-3
$3,164.00
$2,706.79
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$3,164.00
$2,706.79
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Von Duprin 8875F-3FT Fire Rated Wide Stile Crossbar Mortise Exit Device, Less Dogging, 36"

Commercial-Grade Fire Rated Mortise Exit Device for Wide Stile Door Applications

The Von Duprin 8875F-3FT is a fire rated, wide stile crossbar mortise exit device from the trusted 88 Series, engineered for demanding commercial single and double door applications. Designed to fit door stiles as narrow as 4-3/4" (121 mm) and compatible with stock hollow metal doors featuring 86 cutouts, this 36" device delivers dependable egress performance with a 3/4" (19 mm) anti-friction latch bolt that is field reversible without removing the lock from the door. Certified to ANSI/BHMA A156.3, 2008 Grade 1 and listed under ANSI/UL 10C for fire-rated installations, the 8875F-3FT is a code-compliant solution for facilities requiring reliable emergency exit hardware.

Professional Features & Benefits

  • Wide Stile Compatibility: Fits door stiles as narrow as 4-3/4" (121 mm), accommodating stock hollow metal doors with 86 cutouts for broad installation flexibility.
  • Fire Rated Construction: Certified to ANSI/UL 10C and CAN/ULC-S104 for fire-rated applications, ensuring code compliance in fire-rated door assemblies.
  • Grade 1 Certified Performance: ANSI/BHMA A156.3, 2008 Grade 1 certified and ANSI/UL 305 and CAN/ULC-S132 listed for proven commercial-grade reliability.
  • Field-Reversible Latch Bolt: The 3/4" (19 mm) anti-friction latch bolt is field reversible without removing the lock from the door, simplifying installation and service.
  • Non-Handed Auxiliary Bolt: Includes a non-handed auxiliary bolt for deadlocking, providing added security without handing restrictions.
  • Adjustable Faceplate: Features a faceplate with an adjustable bevel for precise fit across varying door preparations.
  • Field-Selectable Functions: TP and K functions may be field selected by turning down a set screw in the mortise lock body, offering installation flexibility without additional parts.
  • Electronic Options Available: Compatible with E8875 electrified option to pair with access control systems, fire alarm systems, or remote switching stations; RX monitoring switch also available.
  • Crossbar Style Options: Available with KN knurling on crossbars to provide a tactile warning for doors leading to hazardous areas such as stairs, loading platforms, or boiler rooms.
  • Included Fasteners: All necessary mounting fasteners are included for a complete installation.

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: 36"
  • Dogging Configuration: Less Dogging
  • Fire Rating: Yes
  • 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 engineered to meet the most rigorous commercial standards, carrying ANSI/BHMA A156.3, 2008 Grade 1 certification along with ANSI/UL 10C and CAN/ULC-S104 fire-rated listings for dependable performance in life-safety applications. The 8875F-3FT features a field-reversible 3/4" anti-friction latch bolt, non-handed auxiliary deadlocking bolt, and field-selectable functions that simplify installation and long-term serviceability. Engineered for demanding commercial environments where code compliance and reliable emergency egress are essential, Von Duprin delivers the professional-grade quality that facility managers and security professionals trust.

Manufacturer Resources

Von Duprin 88 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:
36"
Dogging Configuration:
Less Dogging
Fire Rating:
Yes
Product Projection:
04/07/2008
Product Style:
Cross Bars
Product Category:
Exit Devices and Trim
Department:
Door Hardware

Von Duprin 8875EO-F US26D-3 – Frequently Asked Questions

1) Can the 8875F be used on a fire rated door opening?
Yes. The 8875F is a fire rated device, listed to ANSI/UL 10C and CAN/ULC-S104, and it also carries ANSI/UL 305 and CAN/ULC-S132 panic listings plus ANSI/BHMA A156.3, 2008 Grade 1. That combination is what an inspector looks for on a fire rated egress opening. Note the F in the model, and note that it is supplied less dogging, which is correct for fire doors since the latch must never be held retracted.
2) Why does the Von Duprin 8875F have no dogging, and can I add it?
No dogging, and it can't be added. Fire rated devices are built less dogging on purpose: holding the latch retracted would leave the fire door unlatched, which defeats the rating. If you need to dog the crossbar down for daytime traffic on a non-rated opening, you want a non-fire device. Among wide stile mortise options we carry, the Adams Rite 8300 Series is the life safety, non-fire rated Grade 1 equivalent.
3) Will the 8875F latch into the strike already in my frame?
The latch bolt throws 3/4 inch (19 mm) and it is an anti-friction type, which is what a mortise device needs to close reliably against a gasketed fire door. It also carries a separate non-handed auxiliary bolt that deadlocks the latch when the door is shut. Since this is a mortise device, the frame needs mortise exit strike prep, not a rim strike, so confirm the existing frame was prepped for a mortise lock before you count on reusing it.
4) What is the difference between a mortise exit device like the 88 Series and a rim or vertical rod device?
A mortise exit device puts the lock body inside the door edge and latches into the frame jamb, which is why it needs a mortise prep and a mortise strike. It suits a single door, or one leaf of a pair where the other leaf is fixed or a mullion is present. It does not latch top and bottom, so if you have a pair of doors with no center mullion, a mortise device is not the answer and you need a vertical rod device such as the Sargent 1256NB-8710G, a fire rated surface vertical rod device with electric latch retraction. The tradeoff is prep: mortise takes more machining up front but leaves less hardware hanging on the door face.
5) What is the closest fire rated wide stile mortise exit device to the Von Duprin 8875F if a wood door is involved?
The Von Duprin 8875F is a fire rated Grade 1 wide stile mortise exit device, but it is not wood door compatible, so it suits hollow metal openings only. For a fire rated wide stile mortise device on a wood door, the Adams Rite 3300 Series is a fire rated Grade 1 wide stile mortise exit device built for wood and hollow metal doors. On a wood fire door assembly, the 3300 is the device that fits; on hollow metal, either works.
6) What outside trim functions can I get on a Von Duprin 88 Series mortise exit device?
Nine trim functions to pick from: exit only (EO), night latch (NL), knob (K), lever (L), thumb piece (TP), the blank escutcheon versions of knob, lever and thumb piece (K-BE, L-BE, TP-BE), and dummy trim (DT). Exit only is the common choice on a stair or rear exit where nobody comes back in; night latch lets a key retract the latch from outside. Pick a lever style at order too: 06 is the default, with 01, 02, 03, 07 and 17 also available.
7) Can I switch the 8875F between thumb piece and knob trim after it is installed?
Yes, on TP and K. Those two functions are field selected by turning down a set screw in the mortise lock body, so no extra parts and no new lock. That is useful for a property manager standardizing a building: one lock body covers either function if the decision changes.
8) Can I tie a Von Duprin 88 Series mortise exit device into access control?
Two ways. The E8875 electrified option works with access control, fire alarm systems, or a remote switching station. Separately, an RX request to exit switch can be specified on the device, which signals the access control panel that someone pushed the crossbar from the inside. RX is a selectable option, so if you need it, call it out on the order rather than assuming it is in the box.
9) Is there anything else I need to buy to install a Von Duprin 8875F?
Mounting fasteners all come with the device, so there is no separate hardware pack to chase. What you do have to decide at order is the trim function, since outside trim is part of the device configuration rather than an afterthought. Compare that with the Corbin Russwin ED5600AL, a Grade 1 three hour fire rated wide stile mortise device where the passage or classroom lever trim is not included and gets ordered separately.
10) Is there a simpler exit only alternative to the Von Duprin 8875F for a back door?
If nobody needs to get back in through that opening, an exit only device skips the trim entirely and costs less to prep. The Falcon 25-M-EO is a Grade 1 wide stile mortise exit device, exit only, 36 inches, rated for 1-3/4 inch doors, so it matches the same door thickness and size class. The BEST Precision 2301 Series is another exit only mortise device with heavy wrought construction. One thing to check before substituting: neither of those is listed to us as fire rated, so on a fire rated opening the 8875F is the one that carries the ANSI/UL 10C listing.
11) Is the Sargent 8904 a substitute for a Von Duprin 8875F ordered in NL night latch?
They cover the same opening type in the same function. The Sargent 8904 is a Grade 1 wide stile mortise exit device in night latch function, and NL night latch is one of the trim functions the Von Duprin 8875F is ordered in. The Sargent 8904 is described with 24VAC/DC operation, so it brings an electrical requirement to the opening; the 8875F's electrical options are the E8875 electrified version and an RX request to exit switch, either of which is selected on the order rather than standard.
12) How does the Corbin Russwin ED5600AL compare to the Von Duprin 8875F for a 1-3/4 inch fire rated opening?
Both are Grade 1 wide stile mortise exit devices for 1-3/4 inch doors, and both are fire rated - the Corbin Russwin ED5600AL is a 3 hour fire rated device. The difference is how trim is handled. The ED5600AL is exit only or takes passage or classroom lever trim that is not included, so the trim is a separate line. The Von Duprin 8875F is ordered with its trim function built into the selection - knob, lever, thumb piece, night latch, dummy or exit only - and the 8875F is a crossbar device where the 8875F crossbar can be specified standard, reinforced or knurled.
13) Will a Sargent 8304 night latch mortise exit device fit where a Von Duprin 8875F fits?
Not necessarily. The Sargent 8304 is a Grade 1 night latch mortise exit device, but it is a narrow stile device, while the Von Duprin 8875F is wide stile and fits stiles as narrow as 4-3/4 inches on stock hollow metal doors with 86 cutouts. For a wide stile hollow metal opening needing night latch, the Sargent 8904 is the wide stile Grade 1 night latch mortise device; the 8304 belongs on a narrow stile door.
14) Is the Sargent 810 an alternative to a Von Duprin 8875F in DT dummy trim?
No, they are different kinds of part. The Sargent 810 is a dummy pull exit device trim - trim alone, with no latching device behind it. The Von Duprin 8875F in DT dummy trim is a complete crossbar mortise exit device for 1-3/4 inch doors. Order the 810 when the device is already on the door and only the outside pull is being replaced; order the 8875F when the whole device is going in.
15) Does the Sargent 1256NB-8710G replace a Von Duprin 8875F?
No. The Sargent 1256NB-8710G is a surface mount vertical rod exit device, not a mortise device, and it is narrow stile with an 84 inch size and electric latch retraction. The Von Duprin 8875F is a 36 inch wide stile mortise exit device that latches into the frame at the strike. The two prep the door differently, so swapping one for the other means re-prepping the opening rather than a drop-in change.
16) What is the knurled crossbar option on the 88 Series for?
Knurling (KN) is the tactile warning texture on the crossbar, used on doors that lead somewhere hazardous: stairs, loading platforms, boiler rooms. Someone reaching for the bar feels the difference before they push. Three crossbar choices in total, standard, RCB reinforced for high abuse openings, and KN knurled.
17) What finishes does the Von Duprin 8875F come in?
Nine finishes: 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. For a facility standardizing across openings, 626 satin chrome is the usual institutional pick and 613 the usual match for darker existing hardware. Matching an existing building means matching the BHMA number, not the name.
18) What wide stile mortise exit device options are there besides Von Duprin for a hollow metal door that is not wood?
The Von Duprin 8875F is a Grade 1 wide stile mortise device that is not wood door compatible. The Detex 30 Series Advantex is also a Grade 1 wide stile mortise exit device that is not wood door compatible, supplied as device only in exit only function. The Falcon 25-M-EO is a Grade 1 wide stile exit only mortise device in 36 inch for 1-3/4 inch doors. Where outside trim is needed rather than exit only, the 8875F is ordered with a knob, lever, thumb piece or night latch function.
How fast can I get the Von Duprin 8875EO-F US26D-3 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-F US26D-3 come with a warranty?
Absolutely. The Von Duprin 8875EO-F US26D-3 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-F US26D-3?
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