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Z

Zero KST203 Water Heater Thermostat,Upper Thermostat,UL certification,Black

  • Based on 48 reviews
Condition: New
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$15.89 Why this price?
Save $154.10 was $169.99

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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Jun 10
Order within 15 hours and 31 minutes
Available payment plans shown during checkout

Color: KST203


Features

  • Double Throw, 120/480 VAC,for dual element tanks
  • Energy saving range setting
  • Built in safety switch to prevent overheating
  • Cross-reference:59T SPDT+66T
  • All thermostats are adjustable,UL certification

Brand: Z


Color: KST203


Wattage: 480 watts


Voltage: 480 Volts


Style: Indoor Installation


Manufacturer: ‎Longterm


Part Number: ‎KSD203


Item Weight: ‎5.9 ounces


Package Dimensions: ‎6.93 x 3.23 x 1.06 inches


Item model number: ‎KSD203


Is Discontinued By Manufacturer: ‎No


Color: ‎KST203


Style: ‎Indoor Installation


Shape: ‎Rectangular


Voltage: ‎480 Volts


Wattage: ‎480 watts


Usage: ‎Heater


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: November 4, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jun 10

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • It's a thermostat...it works
Color: Kst202
Had cold water then I installed this. Now I have hot water
Reviewed in the United States on July 7, 2023 by Hunter Biden's laptop

  • Exactly
Color: KST200
Used on My electric furnace was easy to install an work just like it should
Reviewed in the United States on May 13, 2023 by Steven

  • We have hot water again after weeks of showering at the truck stop
Color: Kst202
We just had our furnace go out and paid $500 for a fix, and then the hot water heater went out. We slowly went from only having a few minutes of warm water to 5 seconds of warm and then just cold. I replaced the heater element but still no change, and then bought another one and changed it still no luck. Frustrated and ready to shell out the money for the comfort of hot water I tried to replace the thermostat after researching more online. So I decided that I would try it and it worked!!!! We could feel the hot water in the matter of minutes! And we save hundreds on a repair ... show more
Reviewed in the United States on February 14, 2023 by Prime Enthusiast

  • thermostat
Color: KST200
working good so far
Reviewed in the United States on February 18, 2022 by jimgenshart

  • defective part
Color: Kst202
defective
Reviewed in the United States on January 7, 2023 by AL

  • Works
Color: KST203
Direct replacement and its been working fine for a few months.
Reviewed in the United States on December 23, 2022 by E 💘 T

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