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Frequently Asked Questions
What is a VON DUPRIN KR54-F US28 keyed removable mullion used for?
The VON DUPRIN KR54-F US28 is a keyed removable mullion designed for paired door openings where a center post is needed for fire-rated or high-traffic applications. It allows the mullion to be removed with a key for full-width passage during move-in or emergency egress.
What are the specifications of the VON DUPRIN KR54-F US28 mullion?
The VON DUPRIN KR54-F US28 is a keyed removable mullion with manufacturer part number KR54-F US28. It features a US28 satin aluminum finish and is designed for use with Von Duprin exit devices. 3G Electric supplies this genuine part for commercial door hardware applications.
Where to buy a VON DUPRIN KR54-F US28 mullion worldwide?
3G Electric supplies the VON DUPRIN KR54-F US28 keyed removable mullion to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this genuine Von Duprin part.
How to install a VON DUPRIN keyed removable mullion?
Installation of a VON DUPRIN keyed removable mullion like the KR54-F US28 typically involves mounting it between the top and bottom door frames using the provided hardware. The mullion is secured with a key cylinder for removal. Always follow the manufacturer's instructions and local building codes for fire-rated openings.
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Common applications for VON DUPRINVON DUPRIN Products
3G Electric supplies VON DUPRIN keyed removable mullions. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









