The Brand Story
EZ Plenum: Air Distribution Parts Built in South Florida
EZ Plenum is a West Palm Beach, Florida manufacturer that focuses on the parts most jobs need and few brands think hard about: the plenum box behind a slot diffuser, the register box above a ceiling, the cap on an outside wall and the vent on a roof. Its products are designed around how contractors actually install and stock them, which is why the line is full of small, practical decisions instead of flashy features.
Chapter 1 · The plenum box
Built to fit the grille, not the other way around
A linear slot diffuser only looks clean if the box behind it feeds air evenly along its whole length. EZ Plenum builds its linear plenum boxes from R-6 fiberglass duct board, about 12 inches tall, sized to the grille patterns installers use most: the Metallum Enterprises 2-slot pattern with 1 inch slots, and the Texas Buildmart 1-slot and 3-slot patterns with 3/4 inch slots. Every size from 12 to 72 inches has a published duct opening, so the fit can be checked against a grille submittal before anything ships.
The same boxes are offered two ways. Assembled boxes arrive ready to set in place. Knocked-down boxes ship flat so distributors and contractors can stock more in less space, then fold them together on the job.
Chapter 2 · Above the ceiling
Insulation where Florida needs it
In a hot, humid attic an uninsulated box sweats, and that water ends up on the drywall. EZ Plenum's register boxes pair a 26 gauge galvanized steel frame with an R-6 fiberglass liner, an outer flange that fastens straight to framing and a 1/2 inch drywall lip that sets the box flush with the ceiling. Its triangle air distribution boxes use the same R-6 duct board to split one supply into several branch runs from a single point.
Chapter 3 · Outside the building
One wall cap for two jobs
Most supply houses stock separate caps for exhaust and for fresh-air intake. EZ Plenum's answer is a side wall cap with a patent-pending swivel lock backdraft damper: set it one way for exhaust, swivel and lock it for intake. The tube is 26 gauge hot-dipped galvanized steel, the hood is 28 gauge and the screen comes off for cleaning. The matching roof vents are extra tall, built from 26 gauge G-90 galvanized steel with a collar, a backdraft damper and a removable birdscreen.
Both come in a mill galvanized finish or six painted colors, from Arctic White to Molten Copper, so the part on the outside of the house can match the siding, stucco or roof instead of standing out.
Chapter 4 · The ceiling grid
QuadraSnap and one consistent face
The QuadraSnap 24 is EZ Plenum's answer to mismatched ceilings. The same nested-square face works as a supply diffuser or, with a 1 inch filter behind it, as a return filter grille. The core is held by magnets and tied to the frame with a security cable, so filters change from the room below without pulling the whole device. It is fabricated and powder coated in Palm Beach, Florida.
The Lineup
What HVAC365 carries from EZ Plenum
HVAC365 stocks the full EZ Plenum air distribution and venting line, with spec sheets on every product that has one:
- Linear plenum boxes: R-6 fiberglass boxes for 12 to 72 inch slot diffusers in 1-slot, 2-slot and 3-slot, assembled or knocked-down.
- Triangle air distribution boxes: small, medium and large tri-boxes that split one supply into several branch runs.
- Insulated register boxes: 6 x 6 through 14 x 14 boxes with a 26 gauge galvanized frame, outer flange, R-6 liner and a 1/2 inch drywall lip.
- QuadraSnap 24 x 24: a lay-in T-bar device that works as a supply diffuser or a filtered return grille, with a magnetic core and security cable.
- Side wall caps: 4 to 12 inch galvanized caps with the swivel lock backdraft damper and a removable screen, in seven finishes.
- Roof vents: 4 to 10 inch extra-tall G-90 galvanized roof vents with a collar, backdraft damper and removable birdscreen, in seven finishes.
At a Glance
EZ Plenum in brief
- Company
- EZ Plenum, LLC
- Home base
- West Palm Beach, Florida
- Core material
- R-6 fiberglass duct board
- Metal parts
- 26 gauge galvanized steel (G-90 on roof vents)
- Grille fits
- Metallum Enterprises 2-slot, Texas Buildmart 1-slot and 3-slot
- Build options
- Assembled or knocked-down
- Finishes
- Mill plus six painted colors
- Signature detail
- Patent-pending swivel lock backdraft damper
Questions
Frequently asked questions about EZ Plenum
Where is EZ Plenum based?
EZ Plenum, LLC is based in West Palm Beach, Florida, where it designs and builds its plenum boxes and air distribution parts.
What does EZ Plenum make?
R-6 fiberglass linear plenum boxes, triangle air distribution boxes, R-6 insulated register boxes, galvanized side wall caps and roof vents, and the QuadraSnap 24 x 24 T-bar supply diffuser and return filter grille.
Which linear diffusers do EZ Plenum boxes fit?
The 2-slot boxes are built to the Metallum Enterprises 2-slot pattern (1 inch slots) and fit most 2-slot grilles. The 1-slot and 3-slot boxes are built to the Texas Buildmart pattern with 3/4 inch slots. Always compare the duct opening on the spec sheet with your grille submittal.
What is the difference between assembled and knocked-down?
Assembled boxes arrive built and ready to install. Knocked-down boxes ship flat to save space and are folded into shape on site; once built they match the assembled version.
Can one EZ Plenum wall cap be used for intake and exhaust?
Yes. The EZSWC side wall cap has a patent-pending swivel lock backdraft damper that sets the same cap up for exhaust or fresh-air intake.
Do EZ Plenum wall caps and roof vents come in colors?
Yes. Both come in mill (galvanized) finish plus Arctic White, Obsidian Black, Terra Brown, Heritage Bronze, Molten Copper and Evergreen.
