MasterTemp 125 Thermal Regulator Assembly | Pentair | 474989 | (Fits MasterTemp 125)

The Pentair MasterTemp 125 Thermal Regulator (474989) optimizes your pool’s water flow to keep it clean and properly filtered. This precision device coordinates with your heater to deliver stable water temperature and reliable filtration, supporting healthier water year-round.

Designed for easy retrofits and seamless MasterTemp series compatibility, it enhances pool circulation and reduces pressure fluctuations. Use cases include backyard family pools, hot tub integration, and seasonal pools that need dependable temperature control and efficient energy use. In seasonal climates, it helps prevent temperature-related stress on equipment and improves pump longevity.

• Precise thermal regulation with built-in sensor and microprocessor
• Seamless compatibility with MasterTemp heaters and Pentair plumbing
• Enhanced filtration efficiency through steady flow and reduced backpressure
• Energy-efficient operation that lowers running costs
• Rugged, weather-resistant construction for outdoor installation

Upgrade your pool experience with consistent warmth, clean water, and simplified maintenance. Ready to optimize your system? Add the Pentair MasterTemp 125 Thermal Regulator to your setup today.