Pentair Flameholder Kit 474994: two square gaskets, mesh cylinder assembly, and white gasket sealant
Exploded diagram of Pentair MasterTemp 125 burner system highlighting Flameholder Kit 474994 components 10-12

Pentair Flameholder Kit for the MasterTemp 125 Heater | 474994

Regular price$165.99
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SKU:
474994
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About This Item

The Pentair Flameholder Kit (474994) is the OEM replacement burner system component for the MasterTemp 125 heater, restoring the flame-holding assembly to factory specification.  This is specifically for the NA natural gas heater version.

IMPORTANT: LICENSED PROFESSIONAL INSTALLATION 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.

The flameholder assembly is the core combustion component within the MasterTemp 125 burner system. It positions and stabilizes the flame during the heating cycle, ensuring consistent ignition and efficient heat transfer. A damaged or deteriorated flameholder can result in ignition failure, incomplete combustion, or heater lockout.

Specifications

Pentair Part Number 474994
Part Name Flameholder Kit
Kit Contents Includes Item Nos. 10, 11, 12, 13 (per MasterTemp 125 burner system diagram)
Quantity Included 1 Kit

Exploded diagram of Pentair MasterTemp 125 burner system highlighting Flameholder Kit 474994 components 10-12

Fits Into

Brand Equipment Line Model / Part Number Notes
Pentair MasterTemp MT125 Flameholder Kit; includes Item Nos. 10, 11, 12, 13
Pentair MasterTemp MasterTemp125 Flameholder Kit; includes Item Nos. 10, 11, 12, 13

Compatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering.

Poolaroo Pro Tip

Before ordering, cross-reference Item Nos. 10, 11, 12, and 13 in your MasterTemp 125 service manual to confirm all four components are needed — individual items within the kit are not sold separately. If only one element of the assembly has failed, the full kit still represents the correct OEM service path for this burner system. 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.

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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