Von Duprin 3527A-4ft 4 ft Smoo...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$4,020.00
$2,653.20
Von Duprin 3527A-4ft 4 ft Smooth Case Narrow Stile Surface Vertical Rod Exit Device

Von Duprin 3527A-4ft 4 ft Smooth Case Narrow Stile Surface Vertical Rod Exit Device

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Model: 3527AEO 4 US26D
$4,020.00
$2,653.20
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In Stock (leaves warehouse same day if ordered before 3pm ET)

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$2,653.20
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Von Duprin 3527A-4ft 4 ft Smooth Case Narrow Stile Surface Vertical Rod Exit Device

Heavy-Duty Surface Vertical Rod Exit Device for Institutional and Commercial Applications

The Von Duprin 3527A-4ft is a 4 ft smooth mechanism case, narrow stile surface-mounted vertical rod exit device engineered for demanding institutional environments including schools, hospitals, and government buildings. Designed to fit door stiles as narrow as 1-3/4" (44mm), this device is ANSI/BHMA A156.3 2014 Grade 1 certified and UL listed for panic exit hardware, making it a trusted solution for single and double door applications. The 3527A features a one-piece center case cover and a non-handed configuration, providing flexible installation across a wide range of commercial openings. With a 36" product size and a device centerline from finished floor of 39-13/16", this exit device is precisely engineered for code-compliant commercial door hardware installations.

Professional Features & Benefits

  • Narrow Stile Compatibility: Fits door stiles as narrow as 1-3/4" (44mm), making it ideal for aluminum-framed and narrow stile door applications in commercial and institutional settings.
  • ANSI/BHMA Grade 1 Certified: Certified to ANSI/BHMA A156.3 2014 Grade 1 standards, the highest industry grade, ensuring long-term reliability in high-traffic, high-use environments.
  • Smooth Mechanism Case: The 3527A features a smooth mechanism case design (distinguished from the grooved 3327A), offering a clean architectural aesthetic suited for modern commercial interiors.
  • Non-Handed Design: The surface vertical rod device is non-handed (except when the SS signal switch option is used), simplifying specification and reducing installation complexity across multiple openings.
  • Comprehensive Certifications: Meets ANSI/UL 10C (fire-rated configurations), ANSI/UL 305, CAN/ULC-S104 (fire-rated configurations), and CAN/ULC-S132, supporting broad code compliance requirements.
  • Field-Configurable Options: A variety of field-configurable options are available, including retrofit kits (CDSI/HDSI dogging indicators, QEL electronic latch retraction, RX request-to-exit, and LX latchbolt monitoring switches) to keep pace with evolving facility technology needs.
  • ADA-Accessible Option Available: The AX upgrade option is certified to meet the 5 lb. force requirements of the 2010 Americans with Disabilities Act (ADA) Chapters 404.2.7 and 30934, and the 2013 California Building Code Chapter 11B-309.4.
  • Delayed Egress Option Available: The CX (CHEXIT) upgrade meets NFPA and IBC requirements for delayed egress, securing doors for 15 seconds after a request to exit while a nuisance alarm sounds.
  • Hex Key Dogging: Equipped with hex key dogging configuration for straightforward hold-open functionality in appropriate applications.

Technical Specifications

  • Product Group: Exit Devices and Trim
  • Series: 33 & 35 Series
  • Grade: Grade 1
  • Fasteners: Includes 1-3/4" and 2-1/4" wood/metal door fasteners, SNB included
  • Product Subgroup: Exit Devices - Vertical Rod
  • Subcategory: Surface Vertical Rod Exit Devices
  • Latch Throw: 3/4"
  • Product Type: Exit Devices - Surface Vertical Rod
  • Commercial/Residential: Commercial
  • Device Centerline from Finished Floor: 39-13/16"
  • Stile Type: Narrow Stile
  • MAP Policy: Yes
  • Door Hand Direction: Non-Handed
  • Door Thickness Range: 1-3/4"
  • Product Size: 36"
  • Dogging Configuration: Hex Key Dogging
  • Product Dimension: 8-3/16" x 1-9/16" x 2-13/32"
  • Fire Rating: No
  • Product Projection: 3-13/16"
  • Product Style: Push Pads
  • Product Category: Exit Devices and Trim
  • Department: Door Hardware

Professional Applications

  • Educational Facilities (Schools and Universities)
  • Healthcare Institutions (Hospitals and Medical Centers)
  • Government and Municipal Buildings
  • Commercial Office Buildings
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Retail Establishments

Why Choose Von Duprin Quality?

Von Duprin surface vertical rod exit devices are engineered to the highest industry standards, with the 3527A-4ft certified to ANSI/BHMA A156.3 2014 Grade 1 and compliant with ANSI/UL 305, ANSI/UL 10C, CAN/ULC-S104, and CAN/ULC-S132 for broad code coverage. The smooth mechanism case, one-piece center case cover, and narrow stile design down to 1-3/4" (44mm) reflect the precision engineering Von Duprin brings to demanding institutional applications. Backed by a comprehensive range of retrofit and upgrade options, Von Duprin exit devices are built to adapt to evolving facility needs while delivering dependable, code-compliant performance in schools, hospitals, government buildings, and commercial facilities.

Product Specs

Product Group:
Exit Devices and Trim
Series:
33/35 Series
Grade:
Grade 1
Fasteners:
Includes 1-3/4" and 2-1/4" wood/metal door fasteners, SNB included
Product Subgroup:
Exit Devices - Vertical Rod
Subcategory:
Surface Vertical Rod Exit Devices
Latch Throw:
3/4"
Product Type:
Exit Devices - Surface Vertical Rod
Commercial/Residential:
Commercial
Device Centerline from Finished Floor:
39-13/16"
Stile Type:
Narrow Stile
MAP Policy:
Yes
Door Hand Direction:
Non-Handed
Door Thickness Range:
1-3/4"
Product Size:
36"
Dogging Configuration:
Hex Key Dogging
Product Dimension:
8-3/16" x 1-9/16" x 2-13/32"
Fire Rating:
No
Product Projection:
3-13/16"
Product Style:
Push Pads
Product Category:
Exit Devices and Trim
Department:
Door Hardware

Von Duprin 3527AEO 4 US26D – Frequently Asked Questions

1) Will the Von Duprin 3527A fit a narrow stile aluminum storefront door?
Yes. The 3527A is a narrow stile surface vertical rod device and fits stiles as narrow as 1-3/4 inches (44mm), which is the usual aluminum storefront stile. It mounts on 1-3/4 inch thick doors. Projection off the door face is 3-13/16 inches, so check your clearance to any adjacent wall or pull.
2) Can the 3527A latch a pair of doors without a mullion?
Yes. A surface vertical rod device latches into a top strike at the head and a bottom strike at the floor rather than into a strike in the frame jamb, so a pair of 3527A devices secures double doors with no center mullion. Rods run on the door face, so nothing is concealed inside the stile.
3) What is less bottom rod on the 3527A and when should I order it?
Less bottom rod (LBR) deletes the lower rod and floor strike, which keeps the threshold clear on doors where dirt, carpet or water would foul a bottom latch. It is a selectable option on the 3527A. If you order LBR, the ES top Pullman latch is the option to pick when the opening also uses an electric strike.
4) Can I get the 3527A to meet the ADA 5 lb operating force requirement?
Yes, by ordering the AX accessible device option. AX is certified to the 5 lb force requirements of the 2010 ADA Chapters 404.2.7 and 30934 and the 2013 California Building Code Chapter 11B-309.4. It is a yes/no selection at order time, not a field change, so specify it up front.
5) What electrified options are available on the 3527A for access control?
For remote unlocking, order EL electric latch retraction, QEL quiet electric latch retraction, or PN pneumatic. For monitoring, RX request-to-exit, LX latchbolt monitor, LX-RX combined, RX2 double switch, or WP-RX waterproof. Local alarm is covered by ALK, RX-ALK and LXRX-ALK kits. QEL, RX and LX are also offered as retrofit kits, so an existing 3527A can be upgraded later.
6) The opening needs a fire-rated vertical rod exit device - what should I use instead of the 3527A-4ft?
The Von Duprin 3527A-4ft is not fire rated, so it cannot go on a labeled opening. Fire-rated surface vertical rod alternatives include the Adams Rite 3100 Series 30 inch device, which is fire rated, Grade 1, and fits 1-3/4 inch doors on wide stile applications; the Arrow S1150 30 inch fire rated exit only device for narrow or wide stile doors at 1-3/4 inch thickness; the Sargent 2727, a Grade 1 fire rated reversible wide stile exit only device; and the TownSteel 9700 Series EF9727, a fire rated Grade 1 heavy duty 36 by 84 inch wide stile device that is wood door compatible.
7) What is the closest narrow stile surface vertical rod equivalent to the Von Duprin 3527A-4ft from another manufacturer?
The Von Duprin 3527A-4ft is a Grade 1 narrow stile surface vertical rod exit device for 1-3/4 inch doors, non-fire-rated. Comparable narrow stile Grade 1 devices include the Corbin Russwin ED4400, a 36 inch narrow stile surface vertical rod device for 1-3/4 inch doors that is exit only and accepts trim; the Falcon 19-V-EO, a Grade 1 narrow stile 36 inch exit only device for 1-3/4 inch doors; and the TownSteel 8900 Series ED3727, a 36 by 84 inch Grade 1 narrow stile device that is wood door compatible. All three are non-fire-rated like the 3527A-4ft.
8) What looks like a substitute for the Von Duprin 3527A-4ft but will not work as one?
The Sargent 12-8710 is a Grade 1 fire rated wide stile surface vertical rod device in a dummy function - it has no latching or exit function, so it cannot replace the 3527A-4ft on an egress opening even though it shares the vertical rod form. The 3527A-4ft itself is UL listed panic exit hardware in Grade 1. Note also that a dummy trim option on the 3527A-4ft applies to the trim side, not the device function.
9) Do I have to specify handing on a Von Duprin 3527A?
The device itself is non-handed, so one unit covers either swing. Handing is still selected on the order (RHR or LHR) because trim and switch options reference it, and the SS signal switch option makes the device handed. Lever trim is likewise handed.
10) Will the 3527A latch into my existing top and bottom strikes?
The latch throw is 3/4 inch, and the device mounts with its centerline 39-13/16 inches from finished floor. If your existing strikes were set for a different device or a different centerline, plan on new strikes and new prep rather than reusing what is on the frame.
11) What is the difference between the Von Duprin 3527A and the 3327A?
Case finish. The 3527A has a smooth mechanism case with a one-piece center case cover; the 3327A is the grooved case version of the same 33/35 Series narrow stile surface vertical rod device. Choose on appearance and on matching the other openings in the building.
12) What outside trim options can I order with the 3527A?
Trim function choices run from exit only (EO) and dummy trim (DT) through lever trims (L, L-BE, L-DT), night latch (NL and NL-OP), and thumbturn functions (T, T-BE, TL, TL-BE). If you pick an L trim, you also pick the lever design: 01, 02, 03, 05, 06, 07, 17 or 18.
13) Does the Von Duprin 3527A come with the mounting fasteners, or do I need sex bolts separately?
Fasteners are included: 1-3/4 inch and 2-1/4 inch wood and metal door fasteners, plus SNB (sex nuts and bolts) for through-bolting. What is not in the box is the outside trim and cylinder, which you specify separately.
14) Can I hold the door unlocked during business hours with the 3527A?
Yes. Standard build is hex key dogging, which depresses and holds the push pad for push-pull operation. If you want staff to dog it with a key instead, order CD cylinder dogging. Order LD (less dogging) where the facility does not want the door dogged at all.
15) Is there a delayed egress version of the 3527A?
Yes, the CX (CHEXIT) upgrade. It holds the door for 15 seconds after a request to exit while a nuisance alarm sounds, and meets NFPA and IBC delayed egress requirements. Confirm your local authority permits delayed egress on the occupancy before specifying it.
16) Is the 3527A rated for high traffic in a school or hospital?
It is certified to ANSI/BHMA A156.3 2014 Grade 1, the highest grade for exit devices, and listed to ANSI/UL 305 and CAN/ULC-S132 for panic hardware. That is the grade institutional specs normally call for on high-use egress doors. For standardizing a facility, note the device is non-handed, so stocking spares is simpler.
17) Is there a simpler or lighter duty vertical rod exit device than the Von Duprin 3527A-4ft?
The Von Duprin 3527A-4ft is certified Grade 1. If the opening does not call for Grade 1, lighter options include the Dexter ED2000 Series, a Grade 2 surface vertical rod panic device, and the TownSteel TS5100 Series, a Grade 2 heavy duty wide stile device in 36 by 84 inch. The Design Hardware 2000V is a standard duty surface vertical rod device in 33 inch, with the Design Hardware 1000V as the heavy duty version of the same family.
18) I want a crossbar instead of a push pad - what is comparable to the Von Duprin 3527A-4ft?
The Von Duprin 3527A-4ft uses a push pad style actuator. For a crossbar look on a narrow stile aluminum door, the Corbin Russwin ED7400 is a Grade 1 36 inch narrow stile crossbar surface vertical rod device for 1-3/4 inch doors that accepts operator trim. The Sargent 3727 is a Grade 1 surface vertical rod device with a standard push bar in a wide stile configuration.
19) Which vertical rod devices are reversible or non-handed like the Von Duprin 3527A-4ft?
The Von Duprin 3527A-4ft is non-handed except when the SS signal switch option is specified. Other devices offered in reversible or non-handed form include the BEST Precision 5201 Series 36 inch reversible surface vertical rod device, the Sargent 2727 reversible Grade 1 fire rated wide stile device, and the Orca Hardware OED56 Series 36 inch non-handed less bottom rod device for 1-3/4 inch doors.
20) I need a less bottom rod vertical rod device - does the 3527A-4ft do that, or is there another option?
The Von Duprin 3527A-4ft is configurable with a less bottom rod option, which keeps the bottom rod and latch off the door where floor conditions or cleaning make them a problem. If you are sourcing elsewhere, the Orca Hardware OED56 Series is supplied as a 36 inch standard duty less bottom rod exit only device, non-handed, in aluminum finish for 1-3/4 inch doors.
21) Does the Von Duprin 3527A-4ft accept lever trim, or do I need a device sold with trim?
The Von Duprin 3527A-4ft is offered in trim functions including exit only, lever, lever with blank escutcheon, night latch, thumbturn, and thumbturn with unlocking, so one device covers both exit only and keyed or lever entry openings. Among comparable narrow stile devices, the Corbin Russwin ED4400 is exit only and accepts trim, the Corbin Russwin ED7400 accepts operator trim, and the Falcon 19-V-EO and Falcon 24-V-EO are exit only functions.
22) For standardizing a school or hospital across both narrow and wide stile openings, which devices pair with the Von Duprin 3527A-4ft?
The Von Duprin 3527A-4ft covers the narrow stile 1-3/4 inch openings at Grade 1 with a 39-13/16 inch device centerline from finished floor. To carry a single family across mixed openings, the Adams Rite 8200 Series is a Grade 1 narrow stile non-fire-rated surface vertical rod device and the Adams Rite 8100 Series is its wide stile counterpart, also Grade 1 and non-fire-rated. On the Corbin Russwin side, the ED4400 covers narrow stile and the ED5400 covers wide stile, both Grade 1 for 1-3/4 inch doors.
23) What is the difference between the Von Duprin 3527A-4ft and a 36 inch wide stile Arrow 3700 device?
The Von Duprin 3527A-4ft is a narrow stile surface vertical rod device for 1-3/4 inch doors with a smooth mechanism case and push pad actuation, available in trim functions from exit only through lever and night latch. The Arrow 3700 Series 30 inch device is a Grade 1 wide stile pushpad surface vertical rod exit bar for 1-3/4 inch doors in an exit only function and is not fire rated. The stile type is the deciding factor on an aluminum storefront door.
24) What finishes does the Von Duprin 3527A come in for matching existing hardware?
Ten: 605 bright brass, 606 satin brass, 612 satin bronze, 613 oil rubbed bronze, 625 bright chrome, 626 satin chrome, 628 aluminum, 643E aged bronze, 710 dark bronze anodized and 711 flat black. For aluminum storefront, 628 and 710 are the usual matches to the framing.
25) Which Dexter vertical rod devices compare to the Von Duprin 3527A-4ft?
The Von Duprin 3527A-4ft is a Grade 1 surface vertical rod device. Dexter offers the ED1000 Series and the ED1500 Series as Grade 1 surface vertical rod exit devices, with the ED1500 listed as non-fire-rated, matching the 3527A-4ft on grade and rating. The Dexter ED2000 Series is a Grade 2 device and sits below all of these on grade.
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Does the Von Duprin 3527AEO 4 US26D come with a warranty?
Absolutely. The Von Duprin 3527AEO 4 US26D is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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