MRCOOL Universal 2-3 Ton Air Return Plenum Box Home Build Resource How to create the cut

How to create the cut list

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MRCOOL Universal 2-3 Ton Air Return Plenum Box Home Build Resource How to create the cutThis 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