Roof Curb, 46 x 41-5/8 x 8 in

Roof Curb, 60 x 36 x 8 in

Return Air Plenum, 16-1/8 x 21-5/8 x 36 in, For RUUD Large Heat Pump

Roof Curb, 30 x 24 x 8 in

Supply Air Plenum, 16-3/8 x 16-3/8 x 36 in, For RUUD Packaged Unit

Supply Air Plenum, 16-1/8 x 16-5/8 x 36 in, For RUUD Large Heat Pump

Foam Curb Gasket

Return Air Plenum, 16-3/8 x 20-1/2 x 36 in, For RUUD Packaged Unit

Supply Air Plenum, 16-3/8 x 16-3/8 x 36 in, For RUUD Packaged Unit

Roof Curb, 46 x 41-5/8 x 8 in

Roof Curb, 46 x 41-5/8 x 8 in

Return Air Plenum, 16-1/2 x 11-1/8 x 36 in, For GE Small Packaged Unit