Package Contents: You will get 1*35839C Cold Control.It is used to adjust the temperature of the water being dispensed Compatibility: Compatible with Elkay and Halsey Taylor Water Coolers,compatible with EZS8L and EZS8S Excellent Quality: This 35839C Cold Control is an OEM part.The performance of the product is tested before leaving the factory to ensure that it can work properly Easy to Install: Simply remove the old or damaged Cold Control Thermostat and replace it with a new one.You can go to Youtube if you need to Search for the corresponding installation video Quality Service: If you have any questions with the product,please contact us in a timely manner.BTROVIA will provide you with the most quality service Package Contents: You will get 1*35839C Cold Control.It is used to adjust the temperature of the water being dispensed