SKU: 52334199281

PENTAIR MAX E THERM HIGH LIMIT SWITCH - 42001-0063S

Sale price$49.55 Regular price$55.05
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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

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Description

PENTAIR MAX E THERM HIGH LIMIT SWITCH - 42001-0063SThe Pentair Max E Therm High Limit Switch (42001 0063S) is an essential safety component that pool service professionals rely on to protect heater systems from dangerous overheating conditions. This critical safety device automatically shuts down the system at 135F, preventing costly equipment damage and ensuring customer safety in residential pool and spa installations. Professional Service Benefits Pool service contractors depend on this non

The Pentair Max-E-Therm High Limit Switch (42001-0063S) is an essential safety component that pool service professionals rely on to protect heater systems from dangerous overheating conditions. This critical safety device automatically shuts down the system at 135°F, preventing costly equipment damage and ensuring customer safety in residential pool and spa installations.

Professional Service Benefits

Pool service contractors depend on this non-resettable switch to maintain system integrity and reduce emergency service calls. The clear HLS LED indicator on MasterTemp heaters makes diagnosis quick and efficient, reducing troubleshooting time on service calls. Compatible with both Max-E-Therm and MasterTemp systems, this switch ensures your technicians can service a wide range of installations with confidence.

Why Pool Contractors Choose MT Pools

MT Pools understands that heater repairs can't wait. Our superior customer service ensures you get the right parts fast, keeping your service operations running smoothly. With our B2B wholesale pricing and reliable inventory, you maintain healthy profit margins while providing exceptional service to your customers.

Frequently Asked Questions

How do I know when the high limit switch needs replacement?

On MasterTemp heaters, the "HLS" LED indicator will light up when the high limit switch has activated and needs replacement. The switch is non-resettable once triggered.

Is this switch compatible with both Max-E-Therm and MasterTemp heaters?

Yes, the 42001-0063S high limit switch is designed for both Pentair Max-E-Therm and MasterTemp heater electrical systems, making it versatile for service contractors.

What temperature triggers the high limit switch?

The high limit switch activates at approximately 135°F (57.2°C) to prevent dangerous overheating and protect the heater system from damage.

Does MT Pools offer technical support for installation?

Yes, MT Pools provides expert technical guidance to pool contractors, along with access to Pentair installation guides and wiring diagrams for proper installation.

Order Today

Keep your service van stocked with this essential safety component. MT Pools' superior customer service and fast shipping ensure you're always ready for emergency heater repairs.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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
SKU: 52334199281

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4.4 ★★★★★
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David
Alexandria, US
★★★★★ 4
Good quality. Easy to destroy the squeaker.
Color: Mixed Color-20PK
Love the price on these and good quality. 4* only because my dog can kill the squeaker in just a few minutes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
B
Verified Purchase
Burtons
Phoenix, US
★★★★★ 5
Balls balls balls and more balls
Color: Mixed Color-20PK
A lot of balls for the price they bounce well and my dog likes squeaking them cuz he thinks he's talking to us. My sister's dog comes over and wants to pull the fuzz off the Rubber Ball and sometimes take the squeaker out of the ball. We like the variety of colors so we can keep track of which ball is where.
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Reviewed in the United States on March 29, 2026
J
Verified Purchase
jeremy
Chelsea, US
★★★★★ 5
Durable and relatively chew proof
Color: Mixed Color-20PK
We've tried a variety of square balls for our mini daschund because she loves to play with them. So far, these are the best we've purchased. They squeak well, but have the plastic squeaker opening covered by the colored cloth of the tennis ball, making the squeak less abrasive and preventing it dog from chewing of the squeaker.
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Reviewed in the United States on February 8, 2026
M
maskedgamer
Cuba, US
★★★★★ 5
Thinks a fun little sniffy toy
Color: blue, Color: blue
My puppy seemed curious and didn’t mind playing with this sniffy toy. It’s large and well made and has plenty of title spots to hide stuff. I put kibble in it and my little puppy sniffed and googled a way. I guess this is great for keeping dogs busy and entertained. It’s a pretty cool little way to give dogs treats or snacks.
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Reviewed in the United States on March 7, 2026
K
Verified Purchase
Ken
Cuba, US
★★★★★ 5
Tennis balls
Color: Squeaky-Multi Colors, Size: 2.5"(Medium)-12 Pack
Nice tennis balls, my dog loves them! Great value.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026

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