LOBIUTIYA Thermal Regulator Kit 77707-0010 (120°F) – Fits MasterTemp & Sta‑Rite, Corrosion-Resistant

If your MasterTemp or Sta-Rite heater is cycling irregularly or failing to hold set temperatures, this replacement thermal regulator kit offers a reliable, corrosion-resistant option rated to open at 120°F. Built to fit multiple heater models, the kit replaces aging or malfunctioning thermostats so your heater can maintain consistent water temperatures between typical operating limits without unnecessary downtime.

How does this thermal regulator bring stability to heater temperature control?

The regulator is calibrated to open at approximately 120°F and works across the normal control range to prevent overheating and excessive cooling. It restores predictable cycling so your heater reaches and holds the setpoint more consistently.

• Opens near 120°F for precise start/stop action
• Operates reliably within common pool heater ranges
• Reduces erratic thermostat behavior that causes temperature swings

Which heater models is the kit compatible with?

This LOBIUTIYA kit is designed to match fit and function for a variety of Pentair-style and Sta-Rite models, making it a versatile replacement option. Confirm your current part numbers or model designation before ordering to ensure compatibility.

• Fits MasterTemp models: 125, 200, 250, 300, 333, 400
• Also compatible with Sta-Rite SR200, SR333, SR400 series heaters
• Cross-references common OEM numbers such as 38000-0007S / 77707-0010

What materials and durability features does the regulator offer?

The assembly uses corrosion-resistant metals and components to withstand poolside environments where moisture and chemicals are present. That construction helps extend the replacement part’s service life and reduces the likelihood of premature failure.

• Corrosion-resistant metals suitable for outdoor use
• Engineered for stable operation across repeated thermal cycles
• Quality finish that resists degradation from humidity and heat

How easy is installation and what support is included?

Installation is straightforward for anyone familiar with pool heater service: the kit is made to align with existing thermostat mounts and electrical connections. LOBIUTIYA also provides customer support to answer fitment or installation questions.

• Designed for direct replacement with standard heater mounts
• Plug-and-play wiring compatibility in compatible models
• Customer support available for part verification and troubleshooting

Who is this for? The LOBIUTIYA 77707-0010 Thermal Regulator Kit is aimed at pool and spa owners, service technicians, and maintenance pros who need a dependable replacement thermostat for MasterTemp and Sta-Rite heaters. If your heater is older, showing inconsistent temperature control, or you prefer proactively replacing a worn thermostat, this kit gives a durable, compatible option to restore steady operation.