Photo 1 of Aprilaire 5843 Humidifier Installation Kit for Aprilaire Whole Home Humidifiers with Manual Control, Compatible with Aprilaire Humidifier Models: 400M, 500M, 600M

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Photo 1 of Aprilaire 5843 Humidifier Installation Kit for Aprilaire Whole Home Humidifiers with Manual Control, Compatible with Aprilaire Humidifier Models: 400M, 500M, 600M