| Genuine Aprilaire 4594 High Humidity Limit Switch |
 The Aprilaire 4594 High Humidity Limit Switch is designed for use with the Aprilaire steam humidifier models 1150 and 1160. Related Products: Aprilaire 4040 24 Volt Solenoid Valve Aprilaire 800 Steam Humidifier Aprilaire 801 Modulating Steam Humidifier Price: 156.99 |