MASTER SPAS PACK, MS50U 825 3RD SENSOR - x300732
PACK, MS50U 825 3RD SENSOR
This original equipment Master Spas pack includes the circuit board and the heater for one low price.
This System Control Pack comes complete with circuit board, heater, temperature sensors, heater gaskets, and plumbing tailpieces.
What our Experts Think
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Complete OEM spa control pack designed for Master Spas MS50U systems, integrating the circuit board, heater, and 3rd temperature sensor for full system management.
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All-in-one replacement solution simplifies repairs by combining key components into a single factory-matched unit, reducing troubleshooting time and compatibility issues.
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Controls essential spa functions including water temperature regulation, pump operation, jet cycles, and safety monitoring for stable daily performance.
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3-sensor system design improves temperature accuracy and heater protection compared to basic dual-sensor packs.
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Drop-in replacement for MS50U platforms used across select Master Spas models (including H2X and Clarity series), but plumbing or wiring adjustments may be required in retrofits.
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Installer-focused design: while labeled “plug-and-play,” proper setup still requires correct configuration of sensors, voltage, and pump circuits for safe operation.
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Best practice note: always verify your exact pack revision and spa model before ordering, as MS50U systems vary in heater wattage, pump configuration, and sensor layout.
Q&A
Q: What is the Master Spas MS50U 825 3rd Sensor Control Pack (X300732)?
A: The X300732 is a genuine OEM Master Spas control system pack for MS50U 825 spa configurations, combining the main control board, heater, and sensors (including a 3rd sensor) for full spa operation.
Q: What does this control pack do?
A: It manages key spa functions including water temperature, heating, pump operation, and safety monitoring through integrated sensors for stable system performance.
Q: Which spas is X300732 compatible with?
A: It is used in select Master Spas models such as Clarity Spas, H2X Swim Spas, Healthy Living, and Michael Phelps swim spa series (varies by configuration/year).
Q: What does “3rd sensor” mean?
A: The 3rd sensor is part of the system’s temperature/flow monitoring setup, helping ensure accurate heating control and protecting against overheating or flow issues.
Q: Is this an OEM replacement part?
A: Yes. X300732 is an original Master Spas/Balboa control pack designed for direct replacement in compatible MS50U systems.
Q: What is included in this pack?
A: Typically includes the control pack assembly with circuit board, heater, sensors, and related fittings depending on configuration.
Maintenance Tips
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