Description
EZ Plenum EZLP12X4 12 Inch 2-Slot Linear Plenum Box (Assembled)
The EZ Plenum EZLP12X4 is an R-6 insulated fiberglass plenum box made to sit behind a 12 inch 2-slot linear slot diffuser. It gives the supply duct a clean, sealed chamber to feed the grille, so air leaves the slots evenly along the full length of the diffuser instead of blowing out of one end.
This is the assembled version. It arrives as a finished box, so the installer only has to connect the branch duct, set it in place and seal it to the grille.
Key features
R-6 fiberglass construction. The box is built from R-6 fiberglass duct board, so it holds back condensation on the plenum and keeps conditioned air from losing temperature above the ceiling.
Sized for 12 inch 2-slot grilles. The 12-1/8 x 4-1/8 in duct opening lines up with most 12 inch 2-slot linear diffusers with 1 in slots.
Ships assembled. The box arrives built and ready to set above the ceiling, so there is no fabrication on the job.
Standard 12 inch height. At 15 x 7 x 12 inches overall, the box fits the plenum depth found in most drop ceilings and framed soffits.
Checking the fit
The duct opening measures 12-1/8 x 4-1/8 in and the box is 15 inches long, 7 inches wide and about 12 inches tall. It is built to the Metallum Enterprises 2-slot pattern and fits most 2-slot linear grilles with 1 inch slots. Grille makers vary slightly, so compare these numbers against the submittal for your diffuser before ordering.
Where it is used
Linear plenum boxes are the standard way to feed slot diffusers in offices, retail spaces, restaurants, condos and modern homes, along window walls, in soffits and in drop ceilings where a long, narrow air pattern looks better than a square register.
Frequently asked questions
What size diffuser does the EZLP12X4 fit? It is made for a 12 inch 2-slot linear diffuser with 1 in slots.
Is the box insulated? Yes. The walls are R-6 fiberglass duct board.
Does it come assembled? Yes. A knocked-down (flat) version is also available for those who prefer to build it on site.
Is the diffuser included? No. This is the plenum box only. The linear grille is sold separately.
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