The Pentair 2-Inch Slip Half Union 42001-0402 is a factory-spec replacement set built for Sta-Rite Max-E-Therm pool and spa heaters. Packaged with two slip unions, two locking nuts, two couplers, and two O-rings, this kit supplies every component required to establish a firm, drip-proof bond between your heater and the surrounding plumbing. The union design enables quick disconnection and reconnection of the heater during servicing, component swaps, or full replacements, cutting labor time and simplifying the entire maintenance process. Manufactured to genuine Pentair specifications, these unions are formulated to stand up against pool treatment chemicals, hydraulic pressure, and repeated assembly cycles without losing their seal. Keeping these connections solid and intact helps preserve heater longevity and ensures your Max-E-Therm unit runs with consistent safety and efficiency.

Key Benefits

• OEM Union Kit: Tailored exclusively for Sta-Rite Max-E-Therm heaters, delivering precise connections that replicate original factory assembly.
• Complete Package: Ships with two 2-inch slip unions, two couplers, two locking nuts, and two O-rings, covering full installation or replacement needs.
• Leak-Free Operation: Establishes a rock-solid seal that guards against drips and maintains heater output during normal and high-demand operation.
• Maintenance Friendly: Union-style connections let you detach and reattach the heater effortlessly, streamlining service calls and system modifications.
• Durability Assured: Built to genuine Pentair standards using resilient materials that hold up against chemical exposure and outdoor elements.

What's Included

• Locking Nuts
• Couplers
• O-Rings

Compatibility

• Pentair Sta-Rite Max-E-Therm Heaters

Specifications

• Brand: Pentair
• Part Number: 42001-0402

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