This phase monitor is designed to use with Pentair UltraTemp pool and spa heat pumps. Measures 1-inch length by 1-inch height by 2/3-inch width.
Phase monitor replacement
Fits Pentair UltraTemp pool and spa heat pumps
Measures 1-inch length by 1-inch height by 2/3-inch width
Pentair 474089 Phase Monitor Replacement UltraTemp Pool and Spa Heat Pump
