Sidedraft to Downdraft Plenum Roof Jack - $75 (Red Bluff)

Sidedraft to Downdraft Plenum Roof Jack 1

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Convert side draft AC or swamp evaporative cooler to downdraft

20” x 20” opening to unit
20” x 32” opening to roof
Flange 36” x 47 1/2”
Long length is 50”
Short length is 24”

Can be modified to your specs

post id: 7937576585

posted: 2026-05-29 16:51

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Sidedraft to Downdraft Plenum Roof Jack - materials - by owner -...

Convert side draft AC or swamp evaporative cooler to downdraft 20” x 20” opening to unit 20” x 32” opening to roof Flange 36” x 47 1/2” Long length is 50” Short length is 24” Can be modified to your...