LOBIUTIYA Thermal Regulator & Bypass Valve Kit 77707-0010/77707-0001 — Opens at 120°F, Corrosion-Resistant

LOBIUTIYA 77707-0010 thermal regulator with the 77707-0001 manifold bypass valve kit replaces faulty thermostats to restore reliable pool and spa temperature control. This kit combines the 77707-0010 thermal regulator (also referenced as 38000-0007S) and the 77707-0001 manifold bypass valve, designed to work with MasterTemp models 400, 250, 200, 300, 333 and Sta‑Rite SR200, SR333, SR400 pool and spa heaters. Built from corrosion-resistant materials and calibrated to open at 120°F, the assembly addresses common thermostat failures that lead to unstable or unsafe water temperatures, providing a dependable service-life upgrade for many gas heater systems.

How does this kit restore stable pool temperatures?

When an original thermostat or bypass valve fails, water temperature can fluctuate or the heater may overwork. The LOBIUTIYA regulator is calibrated to engage at 120°F and the manifold bypass valve diverts flow as needed to keep water within a safe operating band. Together they reduce cycling and maintain steadier temperatures for more comfortable swimming.

• Thermostat opens at 120°F, operating reliably between 120°F–170°F.
• Bypass valve manages water flow to avoid overheating and short cycles.
• Corrosion-resistant parts reduce failure from pool chemistry and weather.

Is this kit compatible with my heater model?

This replacement set is made to fit a wide range of MasterTemp and Sta‑Rite models commonly found in residential pools and spas. Compatibility includes MasterTemp 400, 250, 200, 300, 333 and Sta‑Rite SR200, SR333, SR400. Always compare part numbers and mounting points to your current components before ordering.

• Direct fit for many MasterTemp and Sta‑Rite gas heater models.
• Check existing part numbers 77707-0010 / 38000-0007S and 77707-0001 for match.
• Simple swap for systems using the same mounting and valve configuration.

What are the materials and expected durability?

The kit is constructed from materials selected to resist corrosion and the effects of pool chemicals, extending useful life compared with worn OEM parts. Robust construction helps maintain calibration and performance over repeated heating cycles. Proper installation and routine inspection will further increase longevity.

• Corrosion-resistant metals and durable seals improve resilience.
• Designed to hold calibration across normal operating temperature ranges.
• Reduced need for frequent replacements versus degraded original parts.

How difficult is installation and what does the package include?

Installation typically requires moderate mechanical skill and basic tools; many owners or local pool technicians can complete the swap during routine maintenance. The kit ships with the 77707-0010 thermal regulator (38000-0007S) and the 77707-0001 manifold bypass valve. LOBIUTIYA offers customer support to help with fitment questions.

• Kit includes both thermal regulator and manifold bypass valve.
• Simple bolt-on replacement for matching heater models.
• Customer support available for installation guidance and compatibility checks.

Who is this for? This replacement kit is aimed at pool and spa owners, service technicians, and facilities managers who need a reliable temperature control upgrade for MasterTemp and Sta‑Rite gas heaters. If your heater shows temperature instability, frequent cycling, or a nonresponsive thermostat, this LOBIUTIYA kit offers a durable, compatible solution to restore dependable performance and improve user comfort without replacing the entire heater unit.

FAQ

Q: Will this fit my MasterTemp 400 heater?

A: Yes—this LOBIUTIYA kit is compatible with MasterTemp 400 models; verify your current part numbers 77707-0010 / 38000-0007S and 77707-0001 to confirm fit.

Q: At what temperature does the thermal regulator open?

A: The thermal regulator is rated to open at 120°F and is designed to operate reliably within approximately 120°F–170°F.