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42001-0061S Air Flow Switch for MasterTemp & Max-E-Therm Pool Heaters | Pentair
42001-0061S Air Flow Switch for MasterTemp & Max-E-Therm Pool Heaters | Pentair
42001-0061S Air Flow Switch for MasterTemp & Max-E-Therm Pool Heaters | Pentair
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42001-0061S Air Flow Switch for MasterTemp & Max-E-Therm Pool Heaters | Pentair

Marsoni M251S
Sale price$159.99
Pay 4 payments of $40.00 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
42001-0061S Air Flow Switch for MasterTemp & Max-E-Therm Pool Heaters | PentairThe genuine OEM Pentair Air Flow Switch (42001 0061S) is the safety sensor that confirms adequate combustion air is reaching the burner before allowing ignition. It monitors the pressure differential across the air metering orifice; once airflow reaches the required threshold, the switch closes the circuit to the hot surface igniter (HSI), which lights the gas air mixture. During a typical heating call, the blower and HSI energize simultaneously.
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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.
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4.3 ★★★★★
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B
Verified Purchase
Book dude
Houston, US
★★★★★ 4
Runs tight. Skinny and smaller than other brands.
Size: 8.5, Color: Brown
Comfy and lots of support. Cushiony. Beware: the brown I ordered runs small. Tighter than other brands.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
L
Verified Purchase
LATASHA JORDAN
Draper, US
★★★★★ 5
Nice
Size: 9, Color: Black
Very comfortable. Worth the money
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
Y
Verified Purchase
YWC
Los Angeles, US
★★★★★ 1
Leather peels right off
Size: 8, Color: Black
Very poor quality - shoes are ruined after a couple months
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
B
Verified Purchase
Blackqueen30
Pawtucket, US
★★★★★ 5
Good purchase
Size: 9.5, Color: Black
Value and quality was good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
C
Verified Purchase
Ce
West Palm Beach, US
★★★★★ 5
Comfortable
Size: 7, Color: Black
Super comfy and stylish, I’ve never worn these styles of loafers however I’m glad I purchased these. I’ve purchased another pair in a different color.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026

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