Photo 1 of 2Pcs CP3540 Ceiling Cover Plate, Round Electrical Box Cover for 3-1/2" to 4" Holes, Paintable White Plastic Hole Plates for Smoker Detector, Living Room & Office

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Photo 1 of 2Pcs CP3540 Ceiling Cover Plate, Round Electrical Box Cover for 3-1/2" to 4" Holes, Paintable White Plastic Hole Plates for Smoker Detector, Living Room & OfficePhoto 2 of 2Pcs CP3540 Ceiling Cover Plate, Round Electrical Box Cover for 3-1/2" to 4" Holes, Paintable White Plastic Hole Plates for Smoker Detector, Living Room & Office