Accurate Thermostat Control: Comes with 1 x upper and 1 x lower water heater thermostat with temperature adjustment range from 90°F to 150°F and high-limit safety cut-off at 170°F. Compatible with 120V-480V systems, this tune-up kit helps restore efficiency, improves usage, and stabilizes water temperature. , Practical Design: Features -O-Disc type thermostats that can interchange with type for flexible replacement. The heating zone of each is chrome-coated to enhance resistance and extend service life. High-quality construction ensures stable performance in daily household use. One-Year & Complete Kit: Includes 2 x 13-9/16 inch electric water heater elements with gaskets, rated 4500W at 240V (3500W at 208V) for fast, consistent heating. Designed to restore performance and extend service life, giving you reliable hot water with peace of mind for a full year. Wide Compatibility & Versatile Fit:electric water heater tune-up kit fits most dual- electric or tanks with capacity ≥ 30 gallons. Compatible with , , , , Ruud, Bradford White, Craftmaster, , Lochinvar, , State, -, and more models. Cost-Effective Maintenance Solution: Replacing worn parts with this commissioning kit saves significantly more money and time than buying a new heater. Helps solve issues such as frequent thermostat reset trips, slow hot water recovery, no hot water, declining water quality, and rising electricity bills over time., Manufacturer: IJSDNVJNDX