| SOUTHWARK 22X8 VERT 45 | 1 | 15S228 |
| SOUTHWARK 22X8 VERT 90 | 2 | 16S228 |
| SOUTHWARK 24X24 ADJ PLENUM TOP | 6 | 49T2424 |
| SOUTHWARK 24X30 ADJ PLEN SIDE | 4 | 49P2430 |
| SOUTHWARK 24X36 ADJ PLEN SIDE | 6 | 49P2436 |
| SOUTHWARK 24X48 ADJ PLEN SIDE | 7 | 49P2448 |
| SOUTHWARK 24X8 - 18X8 TRUNK REDUCER | 1 | 17248188 |
| SOUTHWARK 24X8 - 20X8 TRUNK REDUCER | 1 | 17248208 |
| SOUTHWARK 24X8 4' DUCT | 2 | TD48248 |
| SOUTHWARK 24X8 END CAP | Out of stock | 21248 |
| SOUTHWARK 24X8 FLAT 45 | 3 | 13S248 |
| SOUTHWARK 24X8 FLAT 90 | 2 | 14S248 |
| SOUTHWARK 24X8 OFFSET COLLAR | 2 | 23248 |
| SOUTHWARK 24X8 STRAIGHT COLLAR | 1 | 20248 |
| SOUTHWARK 24X8 TRANS COLLAR | 1 | 23AT248 |
| SOUTHWARK 24X8 VERT 45 | 2 | 15S248 |
| SOUTHWARK 24X8 VERT 90 | 2 | 16S248 |
| SOUTHWARK 25X10 4' DUCT | 6 | TD482510 |
| SOUTHWARK 25X10 START COLLAR | 2 | 202510 |
| SOUTHWARK 25X10-25X16 RA PKG | 6 | 811 |
| SOUTHWARK 26X8 - 22X8 TRUNK REDUCER | 2 | 17268228 |
| SOUTHWARK 26X8 4' DUCT | 8 | TD48268 |
| SOUTHWARK 26X8 END CAP | 1 | 21268 |
| SOUTHWARK 26X8 FLAT 90 | 1 | 14S268 |
| SOUTHWARK 26X8 OFFSET COLLAR | 1 | 23268 |