Von Duprin 4954 Removable Stee...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$905.00
$546.01
Von Duprin 4954 Series Steel Mullion in SP28 Aluminum Painted finish, hollow rectangular steel tube profile

Von Duprin 4954 Removable Steel Mullion for Double Door Rim Device Openings

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Model: 4954 7 FT 2 IN SP28
$905.00
$546.01
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$905.00
$546.01
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Von Duprin 4954 Removable Steel Mullion for Double Door Rim Device Openings

Commercial-Grade Steel Mullion for Single Door Performance in Double Door Applications

The Von Duprin 4954 Series Removable Steel Mullion delivers single door performance in double door openings when used with rim exit devices. Constructed of heavy-duty steel measuring 2" (51mm) wide and 3" (76mm) deep with a wall thickness of 1/8" (3mm), this mullion is engineered for demanding commercial applications. Removal is straightforward — simply loosen the bottom set screw and remove the top fitting cover, which conceals the frame-attached top mullion fitting. Available in SP28 and SP313 finishes to suit a variety of architectural requirements.

Professional Features & Benefits

  • Precise Steel Dimensions: Measures 2" (51mm) wide and 3" (76mm) deep with a 1/8" (3mm) wall thickness, providing a robust and rigid structure suited for high-traffic commercial door openings.
  • Removable Design: Easily removed by loosening the bottom set screw and lifting off the top fitting cover, allowing convenient access and flexibility for maintenance or reconfiguration.
  • Concealed Top Fitting: The top mullion fitting attaches directly to the frame and is concealed beneath the fitting cover for a clean, professional appearance.
  • Single Door Performance: Enables single door operation in double door openings when paired with compatible rim exit devices, simplifying traffic flow and hardware requirements.
  • Strike-Ready Construction: Shipped prepared for strikes with mounting screws included; strikes are not included except where specifically indicated, allowing flexibility in configuration.
  • Finish Options: Available in SP28 and SP313 finishes to coordinate with surrounding door hardware and architectural finishes.
  • Grade 1 Commercial Rating: Rated Grade 1 for commercial applications, meeting the performance demands of high-use institutional and commercial environments.

Technical Specifications

  • Product Group: Exit Devices and Trim
  • Series: 4954
  • Grade: Grade 1
  • Product Subgroup: Parts and Accessories
  • Subcategory: Parts and Accessories
  • Product Type: Exit Devices Parts
  • Commercial/Residential: Commercial
  • Parts and Accessories Type: Installation Accessories
  • Product Attribute: Parts and Accessories
  • Fire Rating: No
  • 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 4954 Series Steel Mullions are built to Grade 1 commercial standards, featuring heavy-duty steel construction with a 1/8" (3mm) wall thickness and precise 2" (51mm) x 3" (76mm) profile dimensions for lasting rigidity and reliability. Designed for seamless integration with rim exit devices, these mullions ship ready for installation with mounting screws included. Engineered for demanding commercial applications where dependable performance and professional-grade construction are essential.

Product Specs

Product Group:
Exit Devices and Trim
Series:
4954
Grade:
Grade 1
Product Subgroup:
Parts and Accessories
Subcategory:
Parts and Accessories
Product Type:
Exit Devices Parts
Commercial/Residential:
Commercial
Parts and Accessories Type:
Installation Accessories
Product Attribute:
Parts and Accessories
Fire Rating:
No
Product Category:
Exit Devices and Trim
Department:
Door Hardware

Von Duprin 4954 7 FT 2 IN SP28 – Frequently Asked Questions

1) How do I get single-door security on a pair of doors without a center post welded in?
A removable mullion is the answer, and that's what the Von Duprin 4954 is. It stands in the middle of a double door opening so each leaf can run a rim exit device against it, giving you the same latching performance you'd get on a single door. When you need the full clear width for moving equipment or furniture, loosen the bottom set screw, lift off the top fitting cover, and the steel tube comes out. The top fitting stays attached to the frame and sits hidden under that cover.
2) What door height do I order the Von Duprin 4954 mullion for?
Three lengths cover most commercial frames: 7 feet 2 inches, 8 feet 2 inches, and 10 feet 2 inches. Measure your frame opening height, not the door leaf, since the mullion runs from the floor to the head fitting. A standard 7-foot opening takes the 7'2" mullion; the taller two are for storefront and institutional frames with high transoms or oversized leaves.
3) Will a Von Duprin 4954 mullion work with vertical rod exit devices?
No. The 4954 is built for rim exit devices, where the latch throws sideways into a strike on the mullion. Surface or concealed vertical rod devices latch at the head and threshold instead and need no mullion at all. If your doors already carry vertical rod hardware, you don't need this part. If you're specifying new, the rim-device-plus-mullion route is what gives you single door performance on the pair.
4) Does the Von Duprin 4954 mullion come with the strikes?
Strikes are not included. The mullion ships prepared for strikes with the mounting screws in the box, so you order the strike that matches your rim device separately. Pick the 299 strike prep option if you want the mullion machined and ready; pick No Prep (Blank) if you're field-drilling or the device you're mounting uses a different strike pattern.
5) Can I use the Von Duprin 4954 on a fire rated pair of doors?
No. The 4954 is not fire rated, so it does not belong on a labeled opening. Fire rated pairs running rim devices require a fire rated (typically keyed removable) mullion, and swapping a non-rated mullion into a labeled opening voids the assembly. Use the 4954 on non-labeled commercial openings only.
6) Is the Falcon 4023 mullion an equivalent to the Von Duprin 4954 for a double door rim device opening?
Both are steel mullions built for the same job: dropping a vertical post between a pair of doors so each leaf can run a rim exit device instead of vertical rods. The Von Duprin 4954 is a removable steel mullion, 2 inches wide by 3 inches deep with a 1/8 inch wall, Grade 1, offered in 7'2", 8'2" and 10'2" heights, in SP28 aluminum painted or SP313 dark bronze painted, and with either 299 strike prep or no prep. The Falcon 4023 is a steel mullion for double door exit device applications in its own 4023 series. Match the mullion to the rim device line you are hanging on the pair and to the frame height you actually have, since the mullion top fitting mounts to the frame head.
7) What is the difference between 299 strike prep and No Prep on the 4954 mullion?
299 Strike Prep means the steel tube arrives already machined for the strike, so the installer bolts it up and hangs the strike without laying out holes on site. No Prep (Blank) is an unmachined tube, which you want when the opening is nonstandard, when you're matching an existing strike location on a retrofit, or when the device calls for a prep the factory pattern doesn't cover. Both preps are offered in every length and both finishes.
8) How heavy duty is the Von Duprin 4954 steel mullion?
The tube is 2 inches wide by 3 inches deep with a 1/8 inch wall, in steel, and it carries a Grade 1 commercial rating. That 1/8 inch wall is what keeps it from flexing when someone pushes hard against a leaf, which is the failure people see with lighter mullions in schools, hospitals, and high traffic entries.
9) Is there an alternative to the Von Duprin 4954 mullion from another brand?
The Falcon 4023 steel mullion is the closest equivalent ZenSupply carries for double door exit device openings. If your problem is a mullion that already moves under load rather than the mullion itself, the Falcon 525 aluminum mullion stabilizers address that instead. Match whichever you choose to the exit device brand and strike you're running.
10) How much clear width does a 4954 mullion take out of my double door opening?
Two inches across the opening, since the tube profile is 2 inches wide by 3 inches deep. The 3 inch dimension runs into the door swing depth, not across the width. On a pair where you occasionally need to move wide equipment through, that 2 inches is why the removable design matters: pull the mullion and you get the full opening back.
11) Can Falcon 525 mullion stabilizers be used in place of a 4954 mullion?
No, they do different things. The Falcon 525 is a set of aluminum mullion stabilizers for exit devices, hardware that braces a mullion. The Von Duprin 4954 is the mullion itself, a removable steel tube 2 inches wide by 3 inches deep with a 1/8 inch wall that carries the strikes for the rim devices on both leaves and mounts into a top fitting attached to the frame. If the double door opening has no post between the leaves, the 4954 is what creates one; stabilizers are an accessory to a mullion already in place.
12) The double doors need a top latch replacement, not a mullion. What is the difference from the 4954?
A top latch is the latching component inside an exit device; the Accentra 60-7010-0049-999 is a top latch replacement component for 7110/7120 exit devices, and the 60-7010-0050-999 is the top latch replacement for the 7110F. The Von Duprin 4954 is not part of a device at all. It is a removable steel mullion, a 2 inch by 3 inch steel post with a 1/8 inch wall that stands between the two leaves so each door can run a rim device against it, removable by loosening the bottom set screw and lifting the top fitting cover. If the existing device is failing to latch, the replacement latch component is the part; if the pair is being converted to rim devices, the mullion is.
13) What finishes does the Von Duprin 4954 mullion come in, and will they match my doors?
Two painted finishes: SP28 aluminum painted and SP313 dark bronze painted. SP28 is the one to pick against clear anodized aluminum storefront; SP313 matches dark bronze anodized frames. Both are available in all three lengths and with either strike prep, so finish choice never limits your other options.
How fast can I get the Von Duprin 4954 7 FT 2 IN SP28 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 Von Duprin 4954 7 FT 2 IN SP28 come with a warranty?
Absolutely. The Von Duprin 4954 7 FT 2 IN SP28 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 4954 7 FT 2 IN SP28?
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 Von Duprin 4954 7 FT 2 IN SP28 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.

Product Reviews

  • 5
    Removable mullion

    Posted by Shane McCoy on Mar 9th 2026

    ships fast. Quality product built tough

  • 5
    Removable mullion

    Posted by Shane McCoy on Feb 25th 2026

    solid price shipped fast quality product

  • 5
    Removable mullion

    Posted by Shane McCoy on Feb 18th 2026

    Great product shipped fast great price

  • 5
    removable mullion

    Posted by Shane McCoy on Jan 23rd 2026

    shipped fast quality product

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