Return Air Drops, Plenums and Boxes

SW1074122048 #1074 12-1/2X20X48 Plenum with Top (66G48H)

SW1074232048 #1074 23X20X48 PLENUM WITH TOP (86G48H)

SW864X10X5 86 4.2 4X10X5 R-4.2 INSULATED CEILING BOX

SW1074132048 #1074 13X20X48 PLENUM WITH TOP (66G48H)

SW866X12X6 86 4.2 6X12X6 R-4.2 INSULATED CEILING BOX

Southwark 1222B Cold Air Boot, 25 x 10 - 25 x 16 Inch, Sheet Metal

Southwark 1222 Return Air Package, 25 x 10 - 25 x 16 Inch, Sheet Metal

Southwark 1221 Return Air Package with Extension Cover, 20 x 10 - 20 x 16 Inch, Sheet Metal

Southwark 1222 Return Air Package with Extension Cover, 25 x 10 - 25 x 16 Inch, Sheet Metal

Southwark SB Return Air Support Box, 10 x 25 Inch, Sheet Metal, 28 Inch W x 10 Inch H x 38 Inch D

Southwark 1072 Adjustable Plenum Top, Sheet Metal, 20 Inch W, 20 Inch D

Southwark 1072 Adjustable Plenum Top, Sheet Metal, 24 Inch W, 24 Inch D