Honeywell Home COVERPLATE Mounting Plate to Cover Holes for 5800SMOKEV and PROSIXSMOKEV

Mounting plate designed to cover holes left from previous installations. Measures 5.8 inches (147 mm) in diameter. The integrated gasket minimizes airflow through larger openings, reducing stack effect interference that could compromise detector performance. Improves the finished appearance by concealing old paint discoloration and surface marks from prior mounting points. Simple installation covers unsightly gaps while maintaining optimal sensor operation.