High Limit Switch for Pentair MasterTemp & Max-E-Therm Pool Heaters | 42001-0063S | SW-41-063

High Limit Switch for Pentair MasterTemp & Max-E-Therm Pool Heaters | 42001-0063S | SW-41-063

Marsoni

M251S

$48.99

Get it in 3 business days with 1 day shipping. Friday, May 29

High Limit Switch for Pentair MasterTemp & Max-E-Therm Pool Heaters | 42001-0063S | SW-41-063The Swimables Hi Limit Switch SW 41 063 is a vital safety device that monitors water temperature and automatically shuts down the heat exchanger the moment readings climb above the safe threshold of 135F. A failed high limit switch typically triggers an HLS error code on your heater's display, signaling that immediate replacement is needed. Because this switch is a one time use safety component, it cannot be reset and must be swapped out with a new

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Be aware this is like drinking dry grass and water that very quickly turns to gelatin. I can’t imagine the Navy seal that must be able to do this. You would have to be trained for torture in order to enter this stuff.. Unless you were hellbent on suffering, avoid this like the plague. Absolute waste of my money.

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Reviewed in the United States on May 24, 2026

Verified Purchase

Navid

New York, US

★★★★★ 5

Really easy to install & works great

Color: 2-Pack Black

Really easy to install and great for a space constricted pantry like mine.

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Reviewed in the United States on June 2, 2026

Verified Purchase

Jennifer R

Los Angeles, US

★★★★★ 5

Great!

Color: 2-Pack White, Color: 2-Pack White

I wish I’d have taken a before photo. But imagine a bunch of spices, on a little spice shelf that makes a U formation and a bunch of spices in the middle. So many spices. So much maneuvering to find the right one. This- this is great! Organized, easy to see, reach. Neat. Excellent investment. It doesn’t even look like I have a lot in there, but I have 46 spices in there! And you’ll notice my cabinet has a lip. Easily fixed with a small piece of wood to raise the item.

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Reviewed in the United States on April 11, 2026