Product details:

Overview The Aprilaire 321A Steam Humidifier Cylinder is a high quality replacement part which fits the Nortec 321 replacement cylinder. To keep your steam humidifier operating at its best, the manufacturer suggests replacing your steam humidifier canister at least once a year. Features: Cylinder Part Number: 321AAC Fit Humidifier Model: NH-020/1Ph Replaces OEM Cylinder Part #: 321 Voltage: 208VAC, 220-240VAC. Supplemental Information: Genuine Aprilaire 321AAC Production Information