Pentair MasterTemp 250 Natural Gas Heater

• Pentair MasterTemp Tube Sheet Coil Assembly Kit 474059474059(Heater Heat Exchanger Kit)

  Pentair's MasterTemp replacement-parts catalog lists tube sheet coil assembly kit 474059 for 250NA/250LP models manufactured after 1/12/2009.

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• Pentair MasterTemp Manifold Kit 460748460748(Heater Manifold Kit)

  Pentair's MasterTemp replacement-parts catalog lists manifold kit 460748 for 250NA/250LP models.

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• Pentair MasterTemp Ignition Control Module 476223476223(Heater Ignition Module)

  Pentair's MasterTemp replacement-parts documentation lists part 476223 for the MasterTemp heater electrical/water system.

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• Pentair MasterTemp Control Board Kit 461105461105(Heater Control Board)

  Pentair's MasterTemp replacement-parts documentation lists part 461105 for the MasterTemp heater electrical/water system.

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• Pentair MasterTemp Thermistor 42001-0053S42001-0053S(Heater Thermistor)

  Pentair's MasterTemp replacement-parts documentation lists part 42001-0053S for the MasterTemp heater electrical/water system.

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• Pentair MasterTemp High Limit Switch 42001-0063S42001-0063S(Heater Limit Switch)

  Pentair's MasterTemp replacement-parts documentation lists part 42001-0063S for the MasterTemp heater electrical/water system.

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• Pentair MasterTemp Water Pressure Switch 42001-0060S42001-0060S(Heater Pressure Switch)

  Pentair's MasterTemp replacement-parts documentation lists part 42001-0060S for the MasterTemp heater electrical/water system.

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• Pentair MasterTemp Stack Flue Sensor 42002-0024S42002-0024S(Heater Sensor)

  Pentair's MasterTemp replacement-parts documentation lists part 42002-0024S for the MasterTemp heater electrical/water system.

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• Pentair MasterTemp Thermal Regulator Kit 77707-001077707-0010(Heater Thermal Regulator Kit)

  Pentair's MasterTemp replacement-parts documentation lists part 77707-0010 for the MasterTemp heater electrical/water system.

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• Pentair MasterTemp Smart Bypass Valve Kit 462048462048(Heater Bypass Valve Kit)

  Pentair lists Smart Heater Bypass Valve Kit 462048 as an optional compatible accessory for MasterTemp heaters.

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• Pentair MasterTemp Five-Button Membrane Keypad 472610Z472610Z(Heater Keypad)

  Pentair specifies 472610Z as the five-button membrane keypad for non-connected MasterTemp heaters made before the May 2021 connected-heater change. Verify manufacturing date / keypad style before ordering.

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• Pentair MasterTemp Six-Button Membrane Keypad 461106461106(Heater Keypad)

  Pentair specifies 461106 as the six-button membrane keypad for connected MasterTemp heaters made after the May 2021 connected-heater change. Verify manufacturing date / keypad style before ordering.

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Technical Specifications & Notes

Verified Documentation SourcesIndependent technical audits

• Pentair 2025-2026 MasterTemp Heater Replacement Parts

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• Pentair MasterTemp High Performance Pool & Spa Heater

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