MRCOOL Universal 2-3 Ton Air Return Plenum Box

MRCOOL Universal 2-3 Ton Air Return Plenum Box

Marsoni

M251S

$29.00

Get it in 3 business days with 1 day shipping. Friday, May 29

MRCOOL Universal 2-3 Ton Air Return Plenum BoxThis is a detailed set of plans to fabricate a sheet metal return plenum specific to the MRCOOL Universal 2 3 Ton indoor unit (air handler). The box accommodates a standard sized 20x20x4 filter. This plan is best handed off to a local sheet metal shop to build, unless you are experienced with fabrication and have the right specialty equipment (shear, brake, Pittsburgh seamer, spot welder). Whats Inside: Overview & general notes Parts List with Diagram

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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These privacy screens are three separate panels, which is really convenient if you don’t need to use all of them at once. I’m currently using two to section off part of my craft room for storage, and it’s working perfectly. They’re lightweight and super easy to move around, so I can rearrange my space whenever I need to. Assembly was simple—everything went together quickly without any hassle.

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Reviewed in the United States on August 17, 2025