Copkim 8 Set 4 X 2 Inch Electrical Junction Box With Cover Square Plenum Box Galvanized Steel Metal Outlet Boxes, Ten 1/2'' Knockouts, 1-7/8" Deep, 13

Spectre Performance 771 Low Profile Dual Plenum Kit With 45°/90° Tube, Silver,24.3 Inch

WAC Lighting Volta 4.5" Square New IC Chicago Plenum Housing, Aluminum, 13" Wide R4SCT-25

24 in. X 24 in. X 24 in. Duct Board Plenum Kit - R6.0

24 in. X 24 in. X 24 in. Duct Board Plenum Kit - R6.0

24 in. X 24 in. X 24 in. Duct Board Plenum Kit - R6.0

Supply And Return Plenum Kit 90G36H/FB2428 W/ Box Filter Rack For 24.5"" Furnace

Dometic White Plenum Kit, Non-Ducted | Camping World

Tinman 20X20x30 Hvac Plenum, W/2 Caps W-1/14" Hole 26-Gauge Steel, USA-Made. Tinman. Galvanized. Plenum & Filter Boxes.

20X20 Plenum W/Filter Rack And Transition To 17X20 Total 25" Return

24 in. Duct Board Ventilation Air Supply Insulation Chamber Plenum Kit

Tinman 16X24x28 HVAC Plenum, 26-Gauge Steel, USA-Made, Up/Down, Multi-System

20"X20" Return Air Plenum With 16" Start Collar Not Intended To Hold A Filter. Return Air Plenum. Silver. Plenums & Filter Boxes.

NEW SPECTRE PLENUM KIT IN BOX. EASY INSTALLATION. FITS WITH 5-1/8 INLET 9859

BUILDMART - 36" Plenum Box For [36" Linear Slot Diffuser - (1 Slot) Single Slot] Premium Insulated Galvanized Sheet Metal Plenum Box For Heating And