🧰 Pentair Manifold O-Ring Kit – MasterTemp® / Max-E-Therm® (Part #77707-0120)

The Pentair 77707-0120 is a genuine OEM manifold O-ring kit designed for use with Pentair MasterTemp® and Sta-Rite Max-E-Therm® pool and spa heaters. This kit includes all necessary O-rings to reseal the manifold assembly, ensuring safe and leak-free operation of your heater system.

✅ Kit Includes:

• Multiple High-Temp O-Rings

• Specifically sized for manifold, bypass, and header connections

• Engineered for High Heat & Chemical Resistance

• Compatible with both natural gas and propane heater models

🔧 Compatibility:

• Pentair MasterTemp® Heaters

• Sta-Rite Max-E-Therm® Heaters

• Works with various BTU sizes (200K, 300K, 400K)

• Always verify your heater model before installation

⚠️ Why Replace Manifold O-Rings?

• Prevent water or gas leaks at the heater manifold

• Maintain proper internal pressure

• Avoid heater error codes and efficiency loss

• Extend the life of your heater by ensuring tight seals

🛠 Premier Pool & Spa offers genuine Pentair parts and heater service expertise. Whether you're rebuilding or troubleshooting, we can help you get your heater sealed and running right.