Collection: Plenums FXP Series by Flo-Matrix HVAC

The FXP Series plenums from Flo-Matrix HVAC are a solid choice when you need a 9-inch overall height plenum that fits into tighter spaces. These are made with HVAC pros and commercial jobs in mind, so they're not your typical off-the-shelf unit. You can pick from different inlet sizes and configurations depending on what your project calls for.

When it comes to insulation, you've got options. You can go with the uninsulated version, or choose one lined with closed-cell elastomeric foam. That foam is low VOC, fiber-free, and non-particulating—so it's a cleaner option for HVAC systems where air quality matters.

Important Note: These plenums are built to order, which means once they're made, we can't accept returns or exchanges.