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42002-0025S Pentair 140° Automatic Gas Shut-Off Switch - MasterTemp & Max-E-Therm Heaters

Marsoni M251S
Sale price$49.99
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42002-0025S Pentair 140° Automatic Gas Shut-Off Switch - MasterTemp & Max-E-Therm HeatersProtect your pool or spa heater investment with this genuine Pentair Automatic Gas Shutoff Switch. Engineered as a critical safety device, this switch continuously monitors operating temperature and immediately cuts the gas supply whenever the system reaches 140 degrees Fahrenheit. This rapid response prevents overheating scenarios that could lead to equipment failure or dangerous conditions. The switch is built as a direct drop in for Pentair
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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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4.0 ★★★★★
Based on 957 reviews
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Mike Steven
Omaha, US
★★★★★ 5
Quality and Function
Looks like a silly little thing, I am not a coffee enthusiast. But it does exactly what it is supposed to do and with high quality. The device (a stretch to call it that) is made of sturdy materials including the needles. They give you two different thicknesses of needles, one for expressi (0.3) and one set for coffee grinds (0.4). Each comes wth some spares. The stand is well designed and keeps grinds from spreading all over. It is very elegant design. I use this with a dosing funnel on my portafilter. Not the cheapest one could buy but well worth the money.
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Reviewed in the United States on March 16, 2025
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Verified Purchase
Sunny
Massapequa, US
★★★★★ 5
Well made, high quality product.
This product demonstrates excellent quality, featuring a robust construction and intuitive design for ease of use. It includes two distinct wire sizes and offers straightforward assembly. Its superior durability and strong magnetic properties ensure effortless reattachment to its stand.
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Reviewed in the United States on June 30, 2025
A
Verified Purchase
Amazon Customer
Massapequa, US
★★★★★ 5
Perfect WDT tool
Best WDT I’ve found. Love that it includes 0.3mm needles (as I’ve found that 0.4mm needles push the grounds around too much), and the stand is very clever. It knocks off the residual grounds on the needles and is easy to use. As far as WDT tools go, I can’t imagine anything better.
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Reviewed in the United States on April 13, 2025
M
Verified Purchase
MrEdmonds
Draper, US
★★★★★ 5
Amazing quality build
This WDT tool is solid and well-made. Definitely worth having!
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Reviewed in the United States on June 26, 2025
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Verified Purchase
Amazon Customer
Belleville, US
★★★★★ 5
Get The Clumps Out
Nice companion in the Espresso Yard. Watch for the guards, and shiv away at that fresh ground Espresso meat.
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Reviewed in the United States on January 8, 2026

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