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

Marsoni

M251S

$159.99

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.

Easy Shipping

Quick Dispatch:

Your 42001-0061S Air Flow Switch for MasterTemp & Max-E-Therm Pool Heaters | Pentair orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your 42001-0061S Air Flow Switch for MasterTemp & Max-E-Therm Pool Heaters | Pentair ships.

Need Help?
Questions about 42001-0061S Air Flow Switch for MasterTemp & Max-E-Therm Pool Heaters | Pentair, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for 42001-0061S Air Flow Switch for MasterTemp & Max-E-Therm Pool Heaters | Pentair in your area.

Get Shipping Estimates

Country Zip/Postal Code

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

I purchased this shampoo and conditioner and honestly, it has pleasantly surprised me. After the first few weeks, I noticed my hair felt softer, looked shinier, and was much easier to manage. My hair tends to be a bit dry and prone to shedding, and I feel like this product has been helping to strengthen it over time.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on March 21, 2026

Verified Purchase

RUBEN POLO A.

Fort Morgan, US

★★★★★ 5

Muy buenos

Size: 16 Fl Oz (Pack of 2)

Exelente muy buenos

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 9, 2026