.... > ....Products > HVAC > Galvanized Duct, Pipe, Fittings and Elbows > Base Cans, Plenums, Filter Frames and Filter Bases > Plenum Take Offs > Plenum Take Offs (Unassembled) - Tapered - 4" Rise > Plenum Take Offs (Unassembled) Tapered — 2" Rise