Falcon 4023 Steel Mullion for ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$608.58
$254.26
Falcon 4023 Series Steel Mullion for Double Door Exit Device Applications, US28 Aluminum Anodized Finish

Falcon 4023 Steel Mullion for Double Door Exit Device Applications

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Model: 4023-SP28-7FT 2IN
$608.58
$254.26
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$608.58
$254.26
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Falcon 4023 Steel Mullion for F25/24/19 Series Exit Devices

The Falcon 4023 steel mullion is engineered for use with F25/24/19 Series rim exit devices on double door openings. Its 2" x 3" steel construction increases security and provides tighter closure while minimizing door warpage and sag. The removable design allows full-width access when needed, and rim devices are used on both leaves to achieve perfectly symmetrical openings.

Features & Benefits

  • 2" x 3" Cross-Section: Designed specifically for F25/24/19 Series exit device compatibility.
  • Ductile Iron Fittings: Heavy-duty mullion fittings for long-term commercial durability.
  • Removable Design: Easily removed and reinstalled for full-width access without compromising security.
  • Enhanced Security: Tighter closure and regulated in-and-out traffic flow.
  • Structural Integrity: Minimizes door warpage and sag over the life of the opening.
  • Complete Assembly: Includes mullion, top and bottom mounting brackets, and screw pack.
  • Fire-Rated Option: F4023 fire-rated version includes four stabilizer blocks as required for labeled installations.
  • Field Adjustable: May be cut on the job for doors under stock lengths.

Technical Specifications

  • Cross-Section: 2" x 3"
  • Available Heights: 7' (standard) and 8' (standard); field-cuttable for shorter openings
  • Finish: US28 - Aluminum Anodized
  • Material: Steel tube with ductile iron fittings
  • Compatible Series: Falcon F25, F24, F19 rim exit devices
  • Fire-Rated Version: F4023 (includes stabilizer blocks for labeled installations)
  • Application: Commercial double door openings
  • Strikes: Not furnished - must be ordered separately

Installation & Operation

This mullion assembly is designed for use with compatible F25/24/19 Series rim exit devices on double door applications. Refer to the parent device installation instructions and manufacturer documentation for proper integration. Ensure compatibility with existing hardware before installation. Strikes are not furnished and must be ordered separately.

Typical Applications

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

Manufacturer Resources

Falcon Exit Devices Catalog

Product Specs

Product Group:
Exit Devices and Trim
Series:
4023
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
Product Category:
Exit Devices and Trim
Department:
Door Hardware

Falcon 4023-SP28-7FT 2IN – Frequently Asked Questions

1) What is a mullion for on a double door with exit devices, and do I need one?
A mullion is the removable steel post that stands in the center of a pair of doors so both leaves can use rim exit devices instead of vertical rod devices. The Falcon 4023 gives each rim device something to latch into, and it lifts out when you need the full opening width for moving equipment or furniture through. If you want a clear opening with no center post at all, you want vertical rod devices instead, not a mullion.
2) Which Falcon exit devices does the 4023 mullion work with?
The 4023 steel mullion is built for Falcon F25, F24 and F19 Series rim exit devices on double door openings. Rim devices go on both leaves, which is what gives you a symmetrical pair. It is not intended for mortise or vertical rod devices, since those do not latch into a mullion.
3) Do I need the fire-rated mullion for a labeled door opening?
Yes, on a labeled opening you order the fire-rated version, F4023, which ships with four stabilizer blocks required for labeled installations. The standard 4023 does not include them. Both are offered in 7 foot and 8 foot heights.
4) What comes in the box with the Falcon 4023 mullion, and what else do I have to order?
The assembly includes the mullion tube, top and bottom mounting brackets, and a screw pack. Strikes are not furnished, so you order the strikes for your rim devices separately. Budget for that on the same purchase order or the doors will not latch when the crew shows up.
5) What height mullion do I order for a 7 foot opening, and can I cut it down?
Two stock heights are made, 7 foot and 8 foot, in both standard and fire-rated. A 7 foot opening takes the 7 foot mullion. For openings shorter than stock length the mullion may be cut on the job. Cutting a fire-rated mullion on a labeled opening is a different matter, so follow the manufacturer instructions that come with the F4023.
6) How big is the Falcon 4023 mullion tube, and what is it made of?
The tube is a 2 x 3 inch steel section with ductile iron fittings top and bottom. That cross-section is what you check against your frame and your door clearances before ordering, and it is sized for the F25/24/19 rim devices. The steel and iron combination is meant for commercial traffic rather than light-duty use.
7) Does the Arrow 16RCR-27 rim housing work as a substitute for a Falcon 4023 mullion on F25/24 openings?
No - they are different parts that happen to share series numbering. The Arrow 16RCR-27 is an SFIC rim housing, 6/7-pin, listed for 24/25 Series, so it is the cylinder housing that accepts a small format interchangeable core in a rim device. The Falcon 4023 is a 2 inch by 3 inch steel tube with ductile iron fittings that stands vertically between the two leaves of a double door opening and gives F25, F24 and F19 rim exit devices something to latch into. A 24/25 series match on a rim housing says nothing about mullion fit, and one will never do the other's job.
8) If I install a Von Duprin 040061 QEL conversion kit on a pair of doors, do I still need a mullion?
Yes. The Von Duprin 040061 is a QEL modular conversion kit that adds quiet electric latch retraction to 33A/35A/98/99 Series 3-foot and 4-foot exit devices - it changes how the device retracts its latch, not what the latch catches. On a double door pair running rim devices, the strike point still has to exist, and that is what a mullion such as the Falcon 4023 provides: a removable 2 inch by 3 inch steel post between the leaves that comes with top and bottom mounting brackets and a screw pack. Note also that the 040061 is Grade 1 33/35/98/99 Series hardware, a different device family from the Falcon F25/24/19 devices the 4023 is built around, and that strikes are not furnished with the 4023 and are ordered separately.
9) Will a mullion stop my double doors from warping and sagging?
That is one of the reasons to use one. The 2 x 3 inch steel post gives the pair a tighter closure and takes the strain that leads to door warpage and sag over the life of the opening, which is also why it helps regulate in-and-out traffic through a busy pair. Common places it goes in are offices, schools, healthcare, retail and warehouse openings.
10) Can I add electric latch retraction to a pair of doors using this mullion?
The 4023 is a mechanical mullion, so electrification lives in the exit devices, not the post. If your project needs quiet electric latch retraction, that is a device-level conversion, for example the Von Duprin 040061 QEL modular conversion kit for 33A, 35A, 98 and 99 Series 3 foot and 4 foot devices, or the 04116 QELX kit for AX devices. The mullion itself carries no wiring.
11) My double doors keep sagging and the top latch is worn - is a replacement top latch the same fix as adding a mullion?
They address different problems. A part like the Accentra 7110/7120 exit device top latch replacement component swaps a worn latch inside the device itself. The Falcon 4023 steel mullion changes the opening: its 2 inch by 3 inch steel section gives a tighter closure and is intended to minimize door warpage and sag over the life of the pair, while remaining removable for full-width access. If the leaves are moving and the latch is only the symptom, the mullion addresses the geometry; if the device hardware alone is worn, a latch component addresses that. For labeled openings, the fire-rated F4023 version ships with four stabilizer blocks required for the installation, and both the standard and fire-rated builds come in 7 foot and 8 foot heights that can be cut on the job for shorter doors.
How fast can I get the Falcon 4023-SP28-7FT 2IN delivered?
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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 Falcon 4023-SP28-7FT 2IN come with a warranty?
Absolutely. The Falcon 4023-SP28-7FT 2IN 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 Falcon 4023-SP28-7FT 2IN?
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