FL18504 – MI Windows and Doors

Florida product approval FL18504-R6 for Windows – Mullions, as listed in ProdApproval’s data as of Sep 29, 2026.

FL#
FL18504-R6
Manufacturer
MI Windows and Doors
Code version
2023 Florida Building Code
Status in our data
Approved
Products
7

Official record on floridabuilding.org →Use on a spec sheet →

Verify approval status on floridabuilding.org before submitting.

Approved products under FL18504-R6

Approval #ModelDescriptionDesign pressureWind-borne debrisHVHZOutside HVHZ
FL18504.1M-1926 Horizontal MullionM-1926 Horizontal Mullion Single, Twin or Triple with TransomN/AYesNoYes
FL18504.2M-1926 Vertical MullionM-1926 Vertical MullionN/AYesNoYes
FL18504.3M-2285 Horizontal MullionM-2285 Horizontal Mullion Single, Twin or Triple with TransomN/AYesNoYes
FL18504.4M-2285 Vertical MullionM-2285 Vertical MullionN/AYesNoYes
FL18504.5M-2300 Horizontal MullionM-2300 Horizontal Mullion, Single or Twin with TransomN/AYesNoYes
FL18504.6M-2300 Vertical MullionM-2300 Vertical MullionN/AYesNoYes
FL18504.7M-2301 Horizontal MullionM-2301 Horizontal Mullion Single or Twin with TransomN/AYesNoYes

Fill a spec sheet with FL18504

On the contractor form, go to the Windows – Mullions row and type 18504 in the Florida Product Approval # box to fill the row. Walton County users can print a PDF that follows the county’s sheet; see the Walton County Product Approval Specification Sheet guide.