Pentair UltraTemp/ThermalFlo Fan Evaporator Relay (473150Z) aquasun Useful when original transformers have

Useful when original transformers have failed or become unreliable

Designed for compatible chemical feeder applications

The white scalloped face keeps this Waterway part looking clean and refined

Assemblies in this category are useful because they restore both pressure visibility and manual air release in one more efficient repair step

or inventory replenishment

Pentair UltraTemp/ThermalFlo Fan Evaporator Relay (473150Z) aquasun Useful when original transformers haveThis fan evaporator relay is an electrical control component for compatible Pentair UltraTemp and ThermalFlo heat pump systems. It helps manage power delivery to fan or evaporator related circuits so the unit can move air and transfer heat as designed. A failing relay may lead to intermittent fan operation, no fan response, inconsistent heating, or diagnostic issues that affect overall system reliability. Use this replacement when electrical