The Pentair 77707-0206 is the OEM replacement manifold body with O-ring for the Sta-Rite Max-E-Therm pool and spa heater. This is a Pentair-supplied component for the Max-E-Therm heater line, originally manufactured under the Sta-Rite brand — now part of the Pentair portfolio.
⚠️ IMPORTANT: HEATER COMPONENT — PROFESSIONAL SERVICE REQUIRED
Gas and electrical heater components must be serviced by a licensed pool professional or qualified HVAC technician. Do not attempt to service gas or high-voltage components without proper certification.
⚠️ IMPORTANT: LUBRICATION REQUIRED — SOLD SEPARATELY
Always lubricate the included O-ring with a silicone-based lubricant before installation. We carry the Pentair R172351 Lifeguard® Silicone Lubricant — the OEM-matched product for Pentair equipment.
The manifold body is a critical internal heater component that directs water flow through the heat exchanger circuit. When the manifold body cracks, warps, or its O-ring fails, water can bypass the heat exchanger or leak internally — resulting in reduced heating efficiency, water loss, or damage to surrounding heater components. Replacing the manifold body and O-ring together restores proper flow routing and sealing integrity. Match the part number 77707-0206 against your existing component or your heater's service manual before ordering.
Specifications
| Pentair Part Number |
77707-0206 |
| Component |
Manifold Body with O-Ring |
Pro Tip
Before installation, apply a thin, even coat of Pentair R172351 Lifeguard® Silicone Lubricant to the O-ring. This helps the O-ring seat correctly, prevents tearing during assembly, and extends its service life. Never use petroleum-based lubricants — they will degrade rubber O-rings and cause premature seal failure. While the heater is open for this service, have your technician inspect adjacent seals and connections for wear to avoid a return visit.
