FL21658 – Construction Specialties, Inc.
Florida product approval FL21658-R4 for Panel Wall – Wall louver, as listed in ProdApproval’s data as of Sep 29, 2026.
- FL#
- FL21658-R4
- Manufacturer
- Construction Specialties, Inc.
- Code version
- 2023 Florida Building Code
- Status in our data
- Approved
- Products
- 1
Official record on floridabuilding.org →Use on a spec sheet →
Verify approval status on floridabuilding.org before submitting.
Approved products under FL21658-R4
| Approval # | Model | Description | Design pressure | Wind-borne debris | HVHZ | Outside HVHZ |
|---|---|---|---|---|---|---|
| FL21658.1 | DC-4174 | Horizontal Drainable Louver | +170/-170 | Yes | Yes | Yes |
Fill a spec sheet with FL21658
On the contractor form, go to the Panel Wall – Wall louver row and type 21658 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.