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Frequently Asked Questions
What is a BEST keyed removable mullion used for?
A BEST keyed removable mullion is used in commercial door systems to temporarily secure or release the center vertical bar (mullion) between paired doors. This allows full-width passage for moving large equipment or furniture while maintaining security when locked. It is common in schools, hospitals, and industrial facilities.
What are the specifications of the BEST RM0KR822689 mullion?
The BEST RM0KR822689 is a keyed removable mullion with a 2-inch length. Its manufacturer part number is RM0KR822689. This mullion is designed for use with BEST locking systems and allows key-operated removal for flexible door configurations. For detailed dimensional or finish specs, consult the manufacturer.
Where to buy BEST RM0KR822689 mullions worldwide?
You can source BEST RM0KR822689 mullions through 3G Electric, a global industrial supplier. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for pricing and lead time on this keyed removable mullion. We supply across 14 industrial departments including hardware and access control.
How to install a BEST keyed removable mullion?
Installation typically involves mounting the mullion housing into the door frame header, then inserting the mullion bar and securing it with the keyed cylinder. Ensure alignment with the floor strike and door closers. Always follow the manufacturer’s template and use proper fasteners. For specific torque or clearance values, refer to BEST installation instructions.
Used in
Common applications for BESTBEST Products
3G Electric supplies BEST keyed removable mullions. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

