Pentair 120/240 Volt Plug Kit | MasterTemp / Max-E-Therm Heaters | 42001-0105S
Pentair 120/240 Volt Plug Kit | MasterTemp / Max-E-Therm Heaters | 42001-0105S

Pentair 120/240 Volt Plug Kit | MasterTemp / Max-E-Therm Heaters | 42001-0105S

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SKU:
42001-0105S
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About This Item

The Pentair 120/240 Volt Plug Kit (42001-0105S) is the OEM replacement electrical plug kit for Pentair MasterTemp and Max-E-Therm pool heaters.

⚠️ IMPORTANT: KIT LISTING — MULTIPLE PIECES INCLUDED
This listing is a kit, not a single plug. All components included in the kit are intended to be replaced together as a set.

⚠️ IMPORTANT: HIGH-VOLTAGE HEATER COMPONENT — 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.

This plug kit provides the correct 120/240 volt electrical connection points for the heater's power supply interface. Damaged, corroded, or failed plugs can interrupt power delivery to the heater control board and heating circuit, causing the unit to fail to start or operate intermittently. Replacing the plug kit with the OEM part restores the original electrical connection integrity specified for these heater models.

Specifications

Pentair Part Number 42001-0105S
Electrical 120/240 Volt
Quantity Included Kit

Fits Into

Brand Equipment Line Model / Part Number Notes
Pentair MasterTemp 125 Heater — MasterTemp Series MT125 120/240 Volt
Pentair MasterTemp 125 Heater — MasterTemp Series MasterTemp125
Pentair Max-E-Therm Heater — MAX-E-THERM Series MAX-E-THERM

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.

Pro Tip

Before ordering, confirm the voltage configuration of your heater installation — 120V and 240V supply configurations use different wiring arrangements, and this kit is rated for both. Match the part number stamped on your existing plug assembly to 42001-0105S before adding to cart. Because this kit involves mains-voltage connections, all installation and replacement work must be performed by a licensed pool professional or qualified electrician — do not attempt to replace electrical heater 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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