Pentair MasterTemp & Max-E-Therm Heater Thermistor 42001-0053S | Swimables SW-41-053

Pentair MasterTemp & Max-E-Therm Heater Thermistor 42001-0053S | Swimables SW-41-053

Marsoni

M251S

$49.99

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

Pentair MasterTemp & Max-E-Therm Heater Thermistor 42001-0053S | Swimables SW-41-053The Swimables Thermistor SW 41 053 is the sensor behind the temperature reading shown on your heater's control panel. When the display begins reporting abnormally high temperatures, that is a clear signal that this component has failed and needs replacement. Because the thermistor is a non resettable part, the only remedy is a fresh unit. Compatible with most Pentair MasterTemp, Sta Rite Max E Therm, and ETI 400 Natural Gas swimming pool heaters, the

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This has been my mom's go-to toy to gift to friends and family when they get a new dog. I just followed suit and bought one as a gift for my friend's Newfoundland puppy. Versatile, can be used as a ball or tug of war toy, and can buy a bigger size for a puppy to grow into because they can still grab it by the holes, unlike other balls and toys that are just too big to get their mouth around

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Reviewed in the United States on May 20, 2026

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Diane Benson

Birmingham, US

★★★★★ 5

They know the word "treatball"

My dogs love these treat balls. I give them one after each meal as a "dessert". I think it helps clean their teeth also, and it keeps them busy for a while.

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Reviewed in the United States on March 31, 2026

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Kim H.

Carnegie, US

★★★★★ 5

Highly Recommend!!!

I bought a second set of these toys for my puppy who is a Chorkie because he LOVES them! They're super durable, very bouncy, extremely light weight, soft and flexible. They're the same size as a golf ball so they're perfect for small dogs. I would highly recommend these especially if you have a puppy who likes to chew and play fetch.

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Reviewed in the United States on August 25, 2025

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RHayward

Draper, US

★★★★★ 5

Perfect size and very durable! Flexible but sturdy.

Perfect for my Frenchton puppy. Easy to pick up in her mouth and they are flexible but sturdy. Unfortunately lost all three already, lol, so guess I’ll be buying more. 🤦‍♀️

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Reviewed in the United States on October 16, 2025