★★★★★ 4
Good parts
They fit
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Reviewed in the United States on May 5, 2026
474989 Thermal Regulator by Pentair | MasterTemp 125 Pool Heater Replacement Part
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
474989 Thermal Regulator by Pentair | MasterTemp 125 Pool Heater Replacement PartKeep your pool or spa at the ideal temperature with the Pentair Thermal Regulator 474989, purpose built for MasterTemp 125 heaters. This precision engineered component governs water temperature with accuracy, safeguarding against overheating while delivering steady, comfortable warmth. Fabricated from premium grade materials built to endure continuous use, this thermal regulator stands up to the demands of daily heater operation. Periodic inspection
Quick Dispatch:
Your 474989 Thermal Regulator by Pentair | MasterTemp 125 Pool Heater Replacement Part orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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4.6 ★★★★★
Based on 682 reviews
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Product Reviews
★★★★★ 5
Todo perfecto 10/10
Todo muy bien 10/10 exelente.
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Reviewed in the United States on March 21, 2026
★★★★★ 5
N54 engine — it fit absolutely perfectly.
N54 engine — it fit absolutely perfectly.
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Reviewed in the United States on March 17, 2026
★★★★★ 5
Works well
This works as a fancy oil cap remover. I wish my oil cap looked this nice.
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Reviewed in the United States on May 25, 2025
★★★★★ 3
Well built
Well made product. I have an volvo xc60 and it fits the oil filter housing perfectly but because of its thickness, there's some interference with the heat shield or it could be part of the skid plate assembly that is next to the filter housing.
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Reviewed in the United States on April 23, 2025
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