| Image | Supplier | Item Code | Short Description |
|---|---|---|---|
| | SOUTHWARK METAL MFG CO | SOU 31306 | 31 30X6 RETURM AIR FRAME |
| | SOUTHWARK METAL MFG CO | SOU SBF30 | SBF30 FILTER SUPPORT BOX |
| | SOUTHWARK METAL MFG CO | SOU 313010 | 31 30X10 RETURN AIR FRAME |
| | SOUTHWARK METAL MFG CO | SOU 313012 | 31 30X12 RETURN AIR FRAME |
| | SOUTHWARK METAL MFG CO | SOU 31308 | 31 30X8 RETURN AIR FRAME |
