Check the listing for details. THERMOSTAT FOR SINGLE ELEMENT TANKS ELECTRIC WATER HEATER. Condition: New. Listed at 16.99 USD. tem specificsConditionNew: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ... Read moreabout the conditionBrandZEROTypeWater Heater ElementGENUINE BRAND NAMEZEROVoltage120 V / 480 VACModelKST202Compatible Model4090/59TMPN4090 / 59TINSTALLATION:THERMOSTATWITH ECO RESET FOR SINGLE ELEMENT WATER HEATERTHIS THERMOSTAT IS:FOR SINGLE ELEMENT ELECTRIC WATER HEATERSHIPPING IS FREE TO U S ABY FIRST CLASS MAILItem description from the seller KST202 Upper Element Thermostat for Single Element Heaters, non-simultaneous, Therm-O-Disk Type Interchangeable with APCOM type, Fits most Brands with Double Heating Elements Tank, UL Listed Single throw, 120/480 VAC,for single element tanksEnergy saving range settingBuilt in safety switch to prevent overheatingCross-reference:59T SPST+66TAll thermostats are adjustable,UL certification This product is a genuine ZERO brand thermostat designed for single element electric water heaters. It is compatible with the 4090/59T model and has a voltage range of 120V to 480VAC. The thermostat comes with an eco reset feature and is shipped for free within the USA via first-class mail. It is an essential component for maintaining the temperature of water in single element tanks electric water heaters.