| Image | Supplier | Item Code | Short Description |
|---|---|---|---|
| | TPI Corporation | TPI 3900ICS | 3900ICS Inside Corner Section for 3900 Series, White |
| | TPI Corporation | TPI 3900ICSC | 3900ICSC Inside Corner Section for 3900 Series, Brown |
| | TPI Corporation | TPI 3900OCS | 3900OCS Outside Corner Section for 3900 Series, White |
| | TPI Corporation | TPI 3900OCSC | 3900OCSC Outside Corner Section for 3900 Series, Brown |
| Manufacturer | TPI Corporation |
| Specifications | 6 in L On Longest Side |
