Pentair 42001-0402 Slip Half Union | Max-E-Therm Heaters | 2" | 2 Pack
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Replacement for Sta-Rite Max-E-Therm SR400NA HeaterThe Pentair 42001-0402 2-Inch Slip Half Union Kit is an OEM replacement designed for use with Sta-Rite Max-E-Therm pool and spa heaters. This kit comes complete with two slip unions, locking nuts, couplers, and O-rings to form a tight, leak-proof connection between the heater and plumbing lines. By allowing easy disconnection and reconnection, the unions simplify routine maintenance, heater replacements, and service calls. Constructed from durable materials and built to OEM Pentair specifications, these unions resist wear from chemicals, heat, and continuous water flow. Replacing worn or cracked unions with this kit helps ensure consistent heater performance, system integrity, and long-term reliability in demanding pool environments.
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OEM Replacement Kit: Designed for Max-E-Therm heaters, offering reliable plumbing connections with parts that meet Pentair factory standards.
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All-Inclusive Set: Contains two slip unions along with O-rings, couplers, and locking nuts to complete the installation.
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Leak-Resistant Seal: Provides a tight connection that prevents water loss and ensures efficient heater operation under pressure.
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Simplifies Service Work: Allows the heater to be easily removed or reattached for cleaning, inspection, or system upgrades.
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Built for Longevity: Resistant to chemical damage, thermal stress, and frequent handling, helping maintain heater functionality over time.
- (2) Locking Nuts
- (2) Couplers
- (2) O-Rings
- Pentair Sta-Rite Max-E-Therm Heaters
Looking for the Pentair 2-Inch Slip Half Union 42001-0402? This section explains installation, troubleshooting, and local pricing for Sta-Rite Max-E-Therm heaters.
Installing the Union Kit Locally
The 42001-0402 includes two slip unions, couplers, and O-rings for quick and secure heater plumbing connections.
How do I install the Pentair 42001-0402 kit on a Max-E-Therm heater?
Can I check local shop stock for this 2-inch slip union kit?
Should I replace both unions at the same time during installation?
Fixing Common Plumbing and Leak Issues
This union kit helps solve leaks, poor connections, and worn O-rings in heater systems.
Will the 42001-0402 kit solve flow issues in my Sta-Rite Max-E-Therm?
How do I know if my heater needs a new set of unions?
Can I compare local prices for the Pentair 42001-0402 before pickup?
Confirming Compatibility Near Me
Confirming the correct part ensures a reliable fit for your heater.
How do I confirm locally that 42001-0402 fits my Sta-Rite Max-E-Therm model?
Is this slip union kit compatible with all Max-E-Therm heater sizes?
Where can I find a local shop near me that stocks the 42001-0402 kit?
Questions & Answers
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