


Stack Flue Sensor, Pentair MasterTemp/Max-E-Therm, Service Kit
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Stack Flue Sensor, Pentair MasterTemp/Max-E-Therm, Service KitApplication: MasterTemp, Max E Therm SR 200, Max E Therm SR 333, Max E Therm SR 400 This new stack flue sensor comes with instructions on how to retrofit the older stack flue switch (42002 0009). Click here to view the instructions as a PDF.
Quick Dispatch:
Your Stack Flue Sensor, Pentair MasterTemp/Max-E-Therm, Service Kit 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]
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4.7 ★★★★★
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★★★★★ 5
Absolutely worth it!
Color: Black, Size: XX-Large, Color: Black, Size: XX-Large
Perfect fit! Nice material! Comfortable and breathable! My husband looked absolutely amazing!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
★★★★★ 5
Decent quality for the price
For the price and quality they’re a decent buy. I bought a few in different colors.
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Reviewed in the United States on August 24, 2025
★★★★★ 5
Mi esposo la amó
Size: Large, Color: Navy
Mi esposo quería una camiseta para clima caliente. Esta fue perfecta, material fresco y de excelente calidad.
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Reviewed in the United States on March 28, 2026
★★★★★ 4
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Material quality and fit very good
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