XX REMOVABLE MULLION
***PRIME COAT DISCONTINUED***
SP28 IN REPLACE
• The F4023, KRF-4023 and KR-4023 steel mullions are for use with the 19-R, 25-R, and XX-R devices
on double door openings. Advantage: Increased security and tighter closure. Minimizes door warpage
and sag. Regulates the flow of in-and-out traffic.
• Falcon removable mullions are easily removed and reinstalled for full width access.
• Rim devices are used on both leaves, attaining a perfectly symmetrical opening.
• The mullion assembly consists of a mullion, top and bottom mounting brackets and a screw pack.
• The F4023 and KRF-4023 fire-rated mullions also include four stabilizer blocks as required for labeled
installations.
• Mullion may be cut on the job for doors under stock lengths.
• KR Mullions require 11⁄4” mortise cylinder with standard A cam.
Features
• Mullion fittings – ductile iron.
• F4023, 4023, KRF-4023 and KR-4023– 2” x 3” x height.
• 2923 mullion - 1-1/2’ x 2-1/2’ x height.
• SP28
• 7’ or 8’ door opening standard, other door opening as specified.
Cylinders
• Cylinder supplied only when specified.
• Cylinders keyed different unless specified keyed alike.
Sex Bolts
• 325 (1⁄4”-20 Thread)
• 425 (#10-24 Thread)
DOUBLE DOOR APPLICATION
Strike Installed With Min. Stile B *
299 2923 mullion 4 1⁄8” 3”
299 4023 mullion 4 3⁄8” 3 1⁄4”
299-F F-4023 mullion 4 3⁄8” 3 1⁄4”
499-F F-4023 mullion 4 1⁄2” 3 5⁄16”
264 2923 mullion 4” 2 7⁄8”
264 4023 mullion 4 1⁄4” 3 1⁄8”
1439 2923 mullion 3 7⁄8” 2 3⁄4”
1439 4023 mullion 4 1⁄8” 3”
1606 2923 mullion 4 1⁄4” 2 5⁄8”
1606 4023 mullion 4 1⁄2” 2 7⁄8”
1609 Surface 25-V 4” 2 3⁄8”
*Backset to vertical center line on the device.
***PRIME COAT DISCONTINUED***
SP28 IN REPLACE
• The F4023, KRF-4023 and KR-4023 steel mullions are for use with the 19-R, 25-R, and XX-R devices
on double door openings. Advantage: Increased security and tighter closure. Minimizes door warpage
and sag. Regulates the flow of in-and-out traffic.
• Falcon removable mullions are easily removed and reinstalled for full width access.
• Rim devices are used on both leaves, attaining a perfectly symmetrical opening.
• The mullion assembly consists of a mullion, top and bottom mounting brackets and a screw pack.
• The F4023 and KRF-4023 fire-rated mullions also include four stabilizer blocks as required for labeled
installations.
• Mullion may be cut on the job for doors under stock lengths.
• KR Mullions require 11⁄4” mortise cylinder with standard A cam.
Features
• Mullion fittings – ductile iron.
• F4023, 4023, KRF-4023 and KR-4023– 2” x 3” x height.
• 2923 mullion - 1-1/2’ x 2-1/2’ x height.
• SP28
• 7’ or 8’ door opening standard, other door opening as specified.
Cylinders
• Cylinder supplied only when specified.
• Cylinders keyed different unless specified keyed alike.
Sex Bolts
• 325 (1⁄4”-20 Thread)
• 425 (#10-24 Thread)
DOUBLE DOOR APPLICATION
Strike Installed With Min. Stile B *
299 2923 mullion 4 1⁄8” 3”
299 4023 mullion 4 3⁄8” 3 1⁄4”
299-F F-4023 mullion 4 3⁄8” 3 1⁄4”
499-F F-4023 mullion 4 1⁄2” 3 5⁄16”
264 2923 mullion 4” 2 7⁄8”
264 4023 mullion 4 1⁄4” 3 1⁄8”
1439 2923 mullion 3 7⁄8” 2 3⁄4”
1439 4023 mullion 4 1⁄8” 3”
1606 2923 mullion 4 1⁄4” 2 5⁄8”
1606 4023 mullion 4 1⁄2” 2 7⁄8”
1609 Surface 25-V 4” 2 3⁄8”
*Backset to vertical center line on the device.
Shipping & Delivery
We are committed to getting your order to you as quickly as possible. Below is an overview of our standard shipping timelines.
In-Stock Items
Orders for in-stock items are processed and shipped within 24–48 hours of order placement. You will receive a shipping confirmation with tracking information once your order has been dispatched.
Out-of-Stock / Special Order Items
Items that are not currently in stock are typically available and ready to ship within approximately 2 weeks. Our team will notify you of any changes to this timeline and provide updates throughout the fulfillment process.
Questions?
If you have any questions about your order or shipping status, please don't hesitate to contact us. We're happy to help.