Set of black plastic and rubber manifold internal components including a rectangular gasket, two rectangular pieces, and several small round rings

Pentair Manifold Internals | MasterTemp & Max-E-Therm 200,000 BTU Heaters | 77707-0207

Regular price$117.99
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SKU:
77707-0207
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About This Item

The Pentair Manifold Internals (77707-0207) is the OEM replacement internal manifold assembly for 200,000 BTU Pentair MasterTemp and Sta-Rite Max-E-Therm pool and spa heaters.

IMPORTANT: LICENSED 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.

This assembly restores proper flow control and distribution within the heater's internal manifold circuit. When the bypass valve, spring, or internal manifold fittings fail, heater performance and heat transfer efficiency are compromised. Replacing the complete manifold internals as a unit ensures all interdependent components are serviced together.

Specifications

Pentair Part Number 77707-0207
Compatible Heater Output 200,000 BTU
Compatible Equipment Pentair MasterTemp, Sta-Rite Max-E-Therm
Contents Bypass valve, spring, and internal manifold fittings

Poolaroo Pro Tip

When servicing the manifold internals on a MasterTemp or Max-E-Therm, inspect the surrounding header and heat exchanger connections for signs of scale buildup or corrosion before reassembling. Addressing those conditions during the same service visit avoids repeat teardown. Always have a licensed pool professional or HVAC technician perform this repair — heater manifold work involves both water pressure and gas or high-voltage electrical systems.

CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
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Pentair Pool Products and Parts

About Pentair Pool Products and Parts

Pentair is often considered the "gold standard" for pool professionals, and for good reason. Founded in 1966 (originally by five inventors making high-altitude balloons!), the company has evolved into the global leader in smart, sustainable water solutions. For the DIY homeowner, Pentair represents the intersection of rugged durability and silicon valley-tier technology. They pioneered the Variable Speed Pump revolution with the IntelliFlo®, saving American pool owners millions in energy costs. Today, their ecosystem focuses heavily on automation, allowing you to control your pump, heater, lights, and chemistry from a single app. While they are a favorite among professional builders, their "EC" (E-Commerce) line of equipment allows homeowners to access pro-grade technology with valid warranties for DIY installation.

Why We Trust Pentair Pool Products and Parts
Energy Efficiency Leaders: Recipient of the ENERGY STAR® Partner of the Year award for over a decade; their pumps are designed to pay for themselves in energy savings.

Smart Automation: The Pentair Home App and IntelliCenter systems offer best-in-class control over your pool ecosystem from anywhere in the world.

Professional Pedigree: The brand most often recommended and installed by pool builders for high-end residential pools.

Eco-Conscious: Dedicated to reducing water waste and energy consumption through "Green" technology innovations.

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