Jandy 150F Hi-Limit Switch for Pool & Spa Heaters - R0023000

Jandy 150F Hi-Limit Switch for Pool & Spa Heaters - R0023000

Marsoni

M251S

$54.99

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

Jandy 150F Hi-Limit Switch for Pool & Spa Heaters - R0023000The Jandy Hi Limit Switch R0023000 is an essential factory original safety device engineered to guard against overheating in numerous Jandy and Teledyne Laars pool and spa heaters. Set to initiate an automatic system shutdown at 150F, this switch guarantees that your heater stays within safe thermal boundaries, protecting internal parts from heat induced wear and failure. It offers direct compatibility with several widely used models, including units

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We offer a 30-day return/exchange service after receiving.
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Didn't really believe the hype. Did a little research and watched Project Farm and decided to try. Im not a snake oil guy....but I will say my 2013 common rail TDI is quieter and I get a tad more fuel mileage. Does it pay for itself? Well, it does get better mpg, but I feel the reduction in noise most likely relates to less wear and tear and thats good enough for me. Im only using 1oz per fill up (about 14 gallons) so it lasts a very long time. I get 40mpg and im not light footed.

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Reviewed in the United States on April 2, 2026

Verified Purchase

James Jay

San Leandro, US

★★★★★ 5

It's a spark plug

What i needwd

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 27, 2026

Verified Purchase

San Leandro, US