FL37175 – Optimum Steel Windows and Doors
Florida product approval FL37175-R3 for Windows – Mullions, as listed in ProdApproval’s data as of Sep 29, 2026.
- FL#
- FL37175-R3
- Manufacturer
- Optimum Steel Windows and Doors
- Code version
- 2023 Florida Building Code
- Status in our data
- Approved
- Products
- 2
Official record on floridabuilding.org →Use on a spec sheet →
Verify approval status on floridabuilding.org before submitting.
Approved products under FL37175-R3
| Approval # | Model | Description | Design pressure | Wind-borne debris | HVHZ | Outside HVHZ |
|---|---|---|---|---|---|---|
| FL37175.1 | RTS-430i and 6500i Series Structural Mullion (HVHZ)(Impact) | RTS-430i and 6500i Series Structural Mullion (HVHZ)(Impact) | N/A | Yes | Yes | Yes |
| FL37175.2 | RTS-430i and 6500i Series Structural Mullion (WZ3)(Impact) | RTS-430i and 6500i Series Structural Mullion (WZ3)(Impact) | N/A | Yes | No | Yes |
Fill a spec sheet with FL37175
On the contractor form, go to the Windows – Mullions row and type 37175 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.