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The Rectorseal 3CGFLXAG Cover Guard flex adapter fits a single zone (3" or 4.5" interior width) and expands in depth to accommodate different line set sizes. 4-stage adjustability allows the duct to expand from 2 to 4 inches deep. Stay-Clean peel-n-go film allows for a no-fuss clean-up following an install.
The flex adapter features UV stabilized components tested to temperatures from -4 degrees F to 140 degrees F. It also has a quick snap cover and easy lock adjustable fittings.
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