Detex Advantex 20/21EU Series ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$4,129.00
$4,107.14
Detex Advantex 20/21EU Series Surface Vertical Rod with Electric Lock/Unlock

Detex Advantex 20/21EU Series Surface Vertical Rod with Electric Lock/Unlock

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Model: 20EU-628-36x84
$4,129.00
$4,107.14
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$4,129.00
$4,107.14
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Detex Advantex 20/21 Series Surface Vertical Rod Exit Device with Electric Lock/Unlock

Super-Heavy-Duty Panic and Fire Exit Hardware for Double Doors

The Detex Advantex 20/21 Series surface vertical rod exit device delivers super-heavy-duty panic and fire exit hardware designed for all types of double doors without a mullion. This Grade 1 commercial exit device features a patented mounting plate and strike locator system for the easiest and most accurate installation available, with stainless steel deadlocking top latch and hardened steel bottom drop bolt with dust proof strike. All exposed surfaces are finished over stainless steel with PVD, an environmentally friendly finishing process.

Professional Features & Benefits

  • Super-Heavy-Duty Construction: Engineered for years of trouble-free service in high-use, high-abuse commercial environments with Grade 1 performance rating.
  • Patented Installation System: Mounting plate and strike locator system replaces paper templates for fast, accurate installation that saves time and money.
  • Electric Lock/Unlock Function: Field-reversible electric operation provides flexible access control integration for security applications.
  • Stainless Steel Components: Deadlocking top latch and rod covers provide enhanced security and durability with dust proof strike protection.
  • ADA Compliant Design: Includes ramped bottom bolt cover and meets accessibility requirements for commercial applications.
  • Field Configurable: Field sizeable, handed field reversible, with 1/8 turn hex or cylinder dogging options for versatile installation.
  • Minimal Door Preparation: Streamlined installation requirements reduce preparation time and costs while maintaining structural integrity.
  • Manufacturer Warranty: 10 Year Mechanical/3 year Electrical Limited Manufacturer's Warranty for added confidence and protection.

Technical Specifications

  • Commercial/Residential: Commercial
  • Grade: Grade 1
  • Product Category: Exit Devices and Trim
  • Product Function: Electric Lock/Unlock
  • Product Group: Exit Devices and Trim
  • Product Model: 20EU/21EU
  • Product Subgroup: Exit Devices - Vertical Rod
  • Product Type: Exit Devices - Vertical Rod
  • Series: 20/21 Series
  • Stile: Wide
  • Stile Type: Wide Stile
  • Subcategory: Advantex Series
  • Warranty: 10 Year Mechanical/3 year Electrical Limited Manufacturer's Warranty

Installation & Operation

  1. Verify electrical requirements match available power supply and confirm current capacity before proceeding with electric lock/unlock installation.
  2. Disconnect power supply before beginning installation. Follow all applicable electrical codes and safety procedures.
  3. Mount the unit in the specified location ensuring adequate clearance for wiring access, ventilation, and future service requirements.
  4. Route and connect wiring according to manufacturer wiring diagrams. Use appropriate wire gauge and connectors for the application.
  5. Configure operational settings including field-reversible electric operation per application requirements.
  6. Restore power and test all functions including normal operation, electric lock/unlock functions, and integration with connected access control systems.
  7. Complete final inspection and document settings. Refer to manufacturer documentation for complete wiring diagrams, programming instructions, and troubleshooting.

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 Detex Quality?

Detex Advantex Series exit devices deliver professional-grade reliability with super-heavy-duty construction designed for high-use, high-abuse environments. The patented mounting plate and strike locator system, combined with stainless steel components and PVD finishing, ensures dependable performance backed by a 10 Year Mechanical/3 year Electrical Limited Manufacturer's Warranty. Engineered for demanding commercial applications where trouble-free operation and enhanced security are essential.



Installation Instructions
Parts List
Door Templates

Product Specs

Subcategory:
Advantex Series
Series:
20/21 Series
Product Group:
Exit Devices and Trim
Product Subgroup:
Exit Devices - Vertical Rod
Product Type:
Exit Devices - Vertical Rod
Commercial/Residential:
Commercial
Warranty:
10 Year Mechanical/3 year Electrical Limited Manufacturer's Warranty
Grade:
Grade 1
Stile:
Wide
Stile Type:
Wide Stile
Product Model:
20EU/21EU
Product Function:
Electric Lock/Unlock
Product Category:
Exit Devices and Trim
Department:
Door Hardware

Detex 20EU-628-36x84 – Frequently Asked Questions

1) Can the Detex Advantex 20/21EU exit device secure a pair of doors with no center mullion?
That is exactly what it is built for. The Advantex 20/21EU is a surface vertical rod device, so it latches at the head and at the floor rather than into a mullion or a strike on the adjacent leaf. Detex describes it for all types of double doors without a mullion. If you would rather keep a mullion and use rim devices, that is a different device type entirely, not an option on the 20/21EU.
2) Will the Detex 20/21EU fit a narrow stile aluminum storefront door?
No. The Advantex 20/21EU is a wide stile device, so it needs a wide stile door (typically a hollow metal or wood commercial leaf). On a narrow stile aluminum glass door you need a narrow stile device instead.
3) What door sizes and heights does the Advantex 20/21EU cover, including tall doors?
Device lengths are offered for 36 inch and 48 inch door widths, and rod lengths are built for 84 inch, 96 inch and 120 inch door heights. If your openings run taller than a standard 84 inch leaf, order the 96 or 120 inch height rather than trying to extend a standard rod. The device is also field sizeable, which helps when widths vary slightly across a building.
4) Do I have to specify handing on the Detex 20EU/21EU?
Handing gets specified at order as Right Hand Reverse or Left Hand Reverse, which are the two handings exit devices use on outswing doors. The 20/21EU is handed field reversible, so a device can be flipped in the field if the opening turns out opposite to what was ordered.
5) Should I order the top rod only version or the top and bottom rod version of the Advantex 20?
Both are offered. Top and bottom rod gives you a floor-level drop bolt with a dust proof strike for maximum security on the inactive or active leaf. Top rod only (commonly specified as less bottom rod) keeps the floor clear, which is what people choose where floor debris, carpet, or an uneven slab fouls a bottom bolt. If you go top and bottom, the hardened steel bottom drop bolt comes with a ramped bottom bolt cover.
6) What does the EU electric lock/unlock function actually do on this Detex device?
The EU suffix means the outside trim or pull side is electrically locked and unlocked, so access control can release the door for entry while the push bar always allows free egress mechanically. Detex builds the electric operation field reversible, so it can be set fail safe or fail secure behavior per the application. Free egress is never dependent on power on a panic device.
7) If the double doors do not need access control, what simpler vertical rod device can go on instead of the Detex 20EU/21EU?
Several exit-only vertical rod devices cover a mechanical opening. The Imperial USA ED-VR531 is a Grade 1 wide stile surface vertical rod device in 36 inch, exit only. The Marks USA M9900VR is a 36 inch by 84 inch vertical rod panic device, exit only and non-handed, with a 48 inch by 84 inch version as the M9900VR-48X84. The Delaney 8100 Series DLY-8100-3684 is a Grade 1 vertical rod device for a 36 inch by 84 inch door. None of these carry the electric lock/unlock function that the Advantex 20EU/21EU is built around, so choose them only where no remote locking is required.
8) What is the closest Von Duprin equivalent to the Detex Advantex 20EU/21EU surface vertical rod device?
The Von Duprin 8827-3FT is the nearest peer in construction class: an 88 Series wide stile surface vertical rod exit device, Grade 1, 3 ft, for 1-3/4 inch doors. The Detex Advantex 20EU/21EU is also Grade 1 and wide stile, and comes in 36 inch and 48 inch sizes. The functional difference that decides the order is electrification: the Advantex 20EU/21EU is built as an electric lock/unlock device for access control integration, while the 8827-3FT is a mechanical vertical rod device. If the opening needs remote lock and unlock, the Detex covers it directly.
9) For a tall opening above 84 inches, which vertical rod device should be used?
The Detex Advantex 20EU/21EU is offered for 84 inch, 96 inch, and 120 inch door heights, and is field sizeable. The Grade 1 comparables in the same class are catalogued for 84 inch doors: the Delaney 9100 DLY-692301 at 36 by 84 in stainless steel, the Delaney 8100 DLY-8100-3684 at 36 by 84, and the Marks USA M9900VR at 36 by 84. For a 96 inch or 120 inch leaf, the Advantex is the one to configure.
10) Do any of the comparable vertical rod exit devices cover a hurricane rated opening?
The Detex Advantex 20EU/21EU is the one to specify for that condition, offered in Hurricane and in Hurricane and Fire Rated configurations alongside Fire Rated and Non-Rated. The Grade 1 peers in the same class, such as the Von Duprin 8827-3FT, the Delaney F9100 DLY-694300, and the Marks USA M9900FVR, are catalogued on fire rating only. For a coastal opening with a wind-borne debris requirement, stay with the Advantex hurricane configuration.
11) What is the difference between the EA, EX, EE and EB electrified options on the Advantex 20/21EU?
They are add-on electrical functions ordered alongside the electric lock/unlock. EA is a hardwired electric alarm on the device, EB is that same alarm with battery backup, EX is a request-to-exit signal switch that tells your access control panel the bar was pushed, and EE is delayed egress. Choose None if you only want the electric lock/unlock and nothing else reporting back.
12) Do I need cylinder dogging or hex dogging on a Detex 20 Series exit device?
Dogging is a required selection: 1/8 turn hex, cylinder dogging, or less/no dogging. Hex dogging is the economical choice where only staff carry the wrench. Cylinder dogging lets you dog the bar with a keyed cylinder, which property managers prefer when the same key system controls the building. Pick less/no dogging for fire rated openings.
13) Is the Detex Advantex 20/21EU rated for high-abuse openings like schools and hospitals?
It is a Grade 1 commercial device, built super-heavy-duty for high-use, high-abuse service, with a stainless steel deadlocking top latch and hardened steel bottom drop bolt. Detex lists it for office buildings, schools, healthcare, retail, industrial, multi-tenant residential and government facilities. Grade 1 is the top ANSI/BHMA performance tier for exit hardware, which is what most institutional specs call for.
14) Is the Cal-Royal 9860 a direct substitute for the Detex Advantex 20EU/21EU?
No. The Cal-Royal 9860 is a heavy duty ADA compliant surface vertical rod device rated Grade 2 and built exit only. The Detex Advantex 20EU/21EU is Grade 1 commercial, super-heavy-duty, and carries the electric lock/unlock function. If the specification calls for Grade 1 or for access control integration, the 9860 will not satisfy it; it suits lighter traffic mechanical openings.
15) The doors are handed and the Marks USA M9900VR is listed as non-handed. Does handing matter when choosing against the Detex 20EU/21EU?
It does for ordering. The Marks USA M9900VR is a non-handed vertical rod panic device, so one part covers either leaf. The Detex Advantex 20EU/21EU is ordered as Right Hand Reverse or Left Hand Reverse and is handed field reversible, so the handing is specified at purchase but can be changed in the field. On a pair of doors without a mullion, confirm the handing of each active leaf before releasing the Detex order.
16) What finishes does the Detex Advantex 20/21EU come in to match existing hardware?
Ten finishes: 605 polished brass, 606 brushed brass, 611 polished bronze, 612 brushed bronze, 613 oil rubbed bronze, 628 brushed aluminum, 629 polished stainless, 630 brushed stainless, 693 black painted and 695 dark bronze painted. Exposed surfaces are finished over stainless steel with PVD, so the plated finishes hold up better than lacquered brass on high-traffic doors.
17) Is the Detex 20/21EU ADA compliant at the floor bolt?
Yes, the device includes a ramped bottom bolt cover so the floor-level hardware does not create a trip edge, and Detex states the design meets accessibility requirements for commercial applications. That ramped cover is the detail inspectors look at on vertical rod devices.
18) Do I need paper templates to prep the door for a Detex Advantex 20 Series device?
No. The 20 Series uses a patented mounting plate and strike locator system that replaces paper templates, which is why door prep is minimal and the strikes land accurately the first time. Detex also publishes installation instructions, a parts list, and door prep templates for the 20 Series if your shop preps doors in advance.
How fast can I get the Detex 20EU-628-36x84 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Detex 20EU-628-36x84 come with a warranty?
Absolutely. The Detex 20EU-628-36x84 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 Detex 20EU-628-36x84?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Detex 20EU-628-36x84 from ZenSupply?
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