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Add to Cart The item has been addedPressure Switch, 4010P, 25A, Tecmark, 1/8"mpt, SPNO, Plastic
MSRP: $56.99$40.97 -
Add to Cart The item has been addedPressure Switch, 25A, Tecmark, 1/8"mpt, SPDT, Plastic
MSRP: $46.99$37.97 -
Add to Cart The item has been addedFlow Switch Sundance Jacuzzi 3/4"MPT with 3/4B x 3/4"B x 3/8"b Tee
MSRP: $159.99$94.97 -
Add to Cart The item has been addedFlow Switch, Sundance Replacement, 3/4" barb, Tee, Box Plug, No Bleeder Barb
MSRP: $157.23$90.97 -
Add to Cart The item has been addedFlow Switch, Harwil Q12DS, 1/2"mpt, 2A
MSRP: $121.69$94.97 -
Add to Cart The item has been addedPressure Switch 1/8" mpt 25 Amp Hot Tub Spa Part Fits High Current How To Video
MSRP: $54.99$45.97 -
Add to Cart The item has been addedPressure Switch D-Tec 1/8" mpt 1 Amp Hot Tub Spa Part Universal How To Video
MSRP: $58.99$48.97 -
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Add to Cart The item has been addedPressure Switch 3029P 25A Tecmark 1/8"mpt SPNO Plastic Body
MSRP: $46.99$35.97 -
Add to Cart The item has been addedThermostat, Invensys, 1/4", 12", SPST, 25A
MSRP: $48.51$37.97 -
Add to Cart The item has been addedThermostat, Invensys, 1/4", 36", SPST, 25A
MSRP: $75.03$59.97
Heater Sensors & Thermals
Heater sensors and thermal components are essential safety and control parts that regulate spa water temperature and prevent dangerous overheating. This category includes temperature sensors, high limit sensors, pressure switches, flow switches, mechanical hi-limit switches, and thermostats. When one of these components fails, your hot tub may stop heating, display error codes, or shut down unexpectedly. Spa Guy Parts stocks a comprehensive range of heater sensors and thermal parts for most major spa brands. Free shipping over $75.