FlexaBoot is the newest and most economical way to provide sound attenuation on return air grilles. It replaces expensive and cumbersome rectangular internally-lined sheet metal boots.

• Acoustically designed and tested for optimum sound attenuation.
  
• UL approved components for use in return air plenum spaces.
  
• Total installation costs are less than one half of rectangular internally lined sheet metal boots.
  
• No fibrous materials are exposed to the airstream.
  
• Two sizes available – 16" and 10" round.
  
• 16" is designed to fit all 16" round neck return grilles and installs on any 24" x 24" return grille (22" x 22" neck) with optional square to round adaptor.
  
• 10" is designed to fit 24" x 12" return grilles (22" x 10" neck) using optional square to round adaptor.
  
• Can be rotated 360° to maximize sound attenuation position.
  
• Weighs only 9 pounds.
  

CAD Detail PDF Drawing

FlexaBoot Submittal Sheet

(Return Grille Not Included)
Acoustical Return Air Boot

Sheet metal return air boots with internal liner are
expensive and cumbersome. FlexaBoots weigh less,
cost less, and provide optimum sound attenuation.