Von Duprin 051811 36" Extensio...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$44.75
Von Duprin 051811 36" Extension Rod Kit for 33 & 35 Series Exit Devices

Von Duprin 051811 36" Extension Rod Kit for 33 & 35 Series Exit Devices

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Model: 051811 SP28
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$44.75
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Von Duprin 051811 36" Extension Rod Kit for 33 & 35 Series Exit Devices

Commercial-Grade Exit Device Installation Accessory

The Von Duprin 051811 36" Extension Rod Kit is a professional-grade installation accessory engineered for use with Von Duprin 33 & 35 Series exit devices. Designed for commercial door hardware applications, this Grade 1 extension rod kit provides the critical linkage needed to ensure proper vertical rod exit device operation on doors requiring a 36" rod length. Built to Von Duprin's exacting standards, this component delivers the reliability and precision fit that professional installers and facility managers depend on for high-traffic commercial environments.

Professional Features & Benefits

  • Precise 36" Rod Length: Engineered to the exact 36" dimension required for compatible vertical rod exit device configurations, ensuring proper fit and reliable operation.
  • Grade 1 Commercial Rating: Meets Grade 1 standards for commercial door hardware, delivering the durability and performance required in demanding, high-traffic applications.
  • 33 & 35 Series Compatibility: Specifically designed for Von Duprin 33 & 35 Series exit devices, ensuring seamless integration and proper function with compatible hardware.
  • Professional Installation Accessory: Classified as an installation accessory within the Exit Devices Parts category, providing the essential components needed for complete exit device assembly and service.
  • Commercial-Grade Construction: Manufactured to Von Duprin's quality specifications for commercial applications, supporting long-term reliability in office buildings, schools, healthcare facilities, and other institutional environments.
  • Parts & Accessories Category: Sourced directly within the Von Duprin Exit Devices and Trim product group, ensuring genuine compatibility and manufacturer-backed quality for replacement and new installation use.

Technical Specifications

  • Product Group: Exit Devices and Trim
  • Series: 33 & 35 Series
  • 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 exit device parts and accessories are manufactured to Grade 1 commercial standards, ensuring dependable performance and precise compatibility with the 33 & 35 Series product line. Each component is engineered to integrate seamlessly with Von Duprin exit devices, supporting the long-term reliability that commercial facilities require. Trust Von Duprin's professional-grade construction for replacement, service, and new installation applications where consistent performance is essential.

Manufacturer Resources

Von Duprin 78/75 Series Catalog

Product Specs

Product Group:
Exit Devices and Trim
Series:
33/35 Series
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 051811 SP28 – Frequently Asked Questions

1) Will the Von Duprin 051811 extension rod kit work with a 33A or 35A vertical rod exit device?
The 051811 is a 36 inch extension rod kit built for Von Duprin 33 and 35 Series exit devices. If your device is in either of those two families, the kit is the right linkage. It is not a rod set for other Von Duprin series or for another brand's device, so match the series stamped on the device before ordering.
2) Can I use a 36 inch Von Duprin extension rod kit on a fire rated door opening?
No. The 051811 rod kit is not fire rated, so it should not be used to build or service a fire exit hardware assembly. For a fire door you need the fire rated version of the rod hardware for your device. On a non-rated opening, panic exit only, the 051811 is the correct part.
3) What is the Falcon equivalent of the Von Duprin 051811 extension rod kit?
The closest Falcon part is the Falcon 610061, a concealed vertical top rod for F-25-C and F-25-CWDC exit devices in the 24 Series Monarch line. Both are vertical rod components, but they are not interchangeable: the Von Duprin 051811 36 inch extension rod kit is built for Von Duprin 33 and 35 Series exit devices, while the 610061 is a 245 Series part matched to Falcon's F-25-C and F-25-CWDC chassis. Vertical rod kits are cut and drilled to the device they serve, so order by the device already on the door. If the exit device is a Von Duprin 33 or 35, use the 051811; if it is a Falcon F-25-C or F-25-CWDC, use the 610061.
4) What does the Von Duprin 051811 kit actually do on the door?
It is the vertical rod extension that carries motion from the exit device crossbar up to the top latch and down to the bottom bolt. On a taller door the factory rod is short, so the 36 inch extension rod makes up the run. It is an installation accessory, not a complete exit device, so you still need the 33 or 35 Series device, latches, and strikes.
5) What finishes does the Von Duprin 051811 extension rod kit come in?
Seven finishes, all standard BHMA codes so you can match the rest of the exit device: 605 bright brass, 606 satin brass, 612 satin bronze, 625 bright chrome, 628 aluminum, 630 satin stainless steel, and 710 dark bronze. On an aluminum storefront the 628 usually matches the door; 630 is the common pick for schools and healthcare corridors where the rest of the hardware is stainless.
6) Is the Von Duprin 051811 rod kit rated for high traffic commercial use?
Grade 1, commercial. That is the top ANSI/BHMA durability tier and the level specified for stairwells, school corridors, and other high cycle openings, so the rod kit is not a light duty or residential part.
7) Is there a concealed vertical rod alternative if my exit device is not a Von Duprin?
The 051811 is a surface rod kit for Von Duprin 33 and 35 Series only. For a Falcon concealed vertical rod device, the Falcon 610061 is the 24 Series Monarch concealed vertical top rod for F-25-C and F-25-CWDC devices. Rod parts are not cross brand, so the device family decides the part.
8) My top latch on a Von Duprin vertical rod device is worn out. Is the 051811 the part I need?
No. The 051811 supplies the 36 inch extension rod, not the latch. A worn top latch is replaced with the latch component for that device. Order the rod kit when the rod run is too short for the door height or the rod itself is damaged.
9) Do I need an extension rod kit or a mullion for a pair of doors with exit devices?
Those address opposite conditions. The Von Duprin 051811 36 inch extension rod kit is a component of a single vertical rod exit device, extending the rod run on one door leaf. A mullion such as the Falcon 4023 steel mullion is a separate vertical member set between the two leaves of a double door so rim exit devices have something to latch into, and the Falcon 525 aluminum mullion stabilizers are accessories for exit device mullion applications. If the doors carry vertical rod devices that latch into the head and sill, the rod kit is the part in question. If the pair carries rim devices with no rod to the head, the opening needs a mullion instead.
10) Will a top latch replacement work instead of an extension rod kit on a vertical rod exit device?
No, those solve different problems. The Von Duprin 051811 is a 36 inch extension rod kit, the linkage that carries motion from the exit device to the latch point. A part such as the Accentra 7110/7120 exit device top latch replacement component is the latching hardware itself. If the device pushes but the top latch never retracts, the rod or its length is usually the item to address; if the rod moves and the latch is worn or damaged, the latch component is the item. Note also that the 051811 is not fire rated, and neither is the Accentra 7110/7120 top latch component, so neither belongs on a labeled fire door assembly.
How fast can I get the Von Duprin 051811 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 051811 SP28 come with a warranty?
Absolutely. The Von Duprin 051811 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 051811 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 051811 SP28 from ZenSupply?
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