Excel Air Top Plenum
Excel Top Plenum Adding a plenum to your XL Series or Stealth Series system will greatly improve ease of installation and Indoor Air Handler efficiency. The box sits over the blower allowing to take the turbulence out of the air and send it down your ducting at a constant flow rate. Top Plenum Installation Instructions & Diagram Key Benefits Made specifically for Excel Indoor Air Handlers Easily mount round ducting to your unit Remove turbulence from air Highly Recommended!