The Aqua Flo 44302303 Control Module (Ballast) can be used with Aqua Flo UV20 & UVB 120 volt ultraviolet water disinfection systems that are equipped with a "Normally Open" (NO) solenoid valve and an audible alarm.

Specifications:

• Voltage: 120 V
• Systems: UV20, UVB
• Lamp Out Circuit with Alarm: #36001021
• Lamp Out Circuit with Solenoid: Normally Open (NO)

To replace the Ballast for the Aqua Flo UV20 Series, you must purchase the Control Module item #10 (page 5 of manual or page 9 of PDF).
To upgrade a UV20-3 or UVBB-3 System to include an audible alarm, you must purchase the alarm #36001021 along with this control module #44302303.