• Quick and easy installation with no sharp edges.
• Can be used for ceiling or wall terminations.
• Perforated mounting flanges for screws or nails
• Preset for 1/2 and 5/8-inch drywall.
• 90° back-stop for a level, uniform installation.
• Off-set from joist for easy installation of ducting and clearance for application of tape or sealer.
• Duct-Stop-Point ensures no screws penetrate the collar and impede the insertion of the grille.
• A rigid bottom flange guarantees the drywall router tool conforms to the circular opening.
• Bottom flange for a permanent air seal.
• V-shaped indentations on bottom edge for centering with previously installed fixtures.

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