Stanley Security QRM313 Grade ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,418.00
$623.92

Stanley Security QRM313 Grade 1 Mullion, Fire Rated

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Model: QRM313 KR 9 689
$1,418.00
$623.92
Selected Finish is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,418.00
$623.92
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Stanley Security QRM313 Grade 1 Mullion, Fire Rated

The Stanley QRM313 is a Grade 1 commercial mullion designed for use with pairs of doors equipped with rim exit devices. It features a keyed removability (KR option), which allows the mullion to be removed when needed for passage or maintenance, while maintaining security functionality when installed.

This mullion is fire-rated, making it suitable for code-compliant entrances. It is pre-prepped to fit Stanley’s QED100 and QED300 exit device series. Multiple finishes are available—including Aluminum Painted (689/US28), Dark Bronze Painted (695), and Primer (600)—to match architectural aesthetics. Length options cover standard 8 ft height, with longer versions (9 ft, 10 ft, 11 ft, 12 ft) for taller openings; additionally, field-sizing is possible


Specifications

Specification Detail
Model QRM313 – Keyed Removable Mullion (KR option)
Grade / Rating ANSI/BHMA Grade 1; Fire-rated for standard heights (max 8 ft for fire rating, longer available) 
Device Type Mullion for double door with rim exit devices
Finish Options Aluminum Painted (689/US28); Dark Bronze Painted (695); Primer (600) 
Standard Height 8 ft (96 in) standard; variants up to 12 ft; field-sizable for non-standard openings
Material / Construction Steel mullion tube, typically 2″ × 3″ with ~1/8″ wall thickness; finishes applied to protect and match visual design
Keyed Removable Yes – allows removal of the mullion when needed for large clearance or maintenance
Compatible Exit Devices Pre-prepped to accept Stanley’s QED100 and QED300 Series exit devices
Finish Codes 600 (Primer), 689 (Aluminum Painted), 695 (Dark Bronze Painted)

Benefits

  • Fire-rated for safety compliance

  • Keyed removable design adds flexibility for access and maintenance

  • Multiple finishes allow matching architectural styles

  • Field-sizeable options support different door height requirements

Manufacturer Resources

Product Specs

Category:
Exit Devices and Trim
Product Group:
Exit Devices and Trim
Series:
QRM300 Series
Product Subgroup:
Exit Devices - Rim
Product Type:
Mullions
Subcategory:
Exit Devices
Commercial/Residential:
Commercial

Stanley Security QRM313 KR 9 689 – Frequently Asked Questions

How fast can I get the Stanley Security QRM313 KR 9 689 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 Stanley Security QRM313 KR 9 689 come with a warranty?
Absolutely. The Stanley Security QRM313 KR 9 689 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 Stanley Security QRM313 KR 9 689?
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 Stanley Security QRM313 KR 9 689 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.