The Elkay 98466C Solenoid Valve Kit is the replacement Solenoid, regulator and nut for Elkay EZ series water coolers. The Solenoid is the part of the water cooler that controls the flow of water when the button or bar is pushed. Because this is done through an electrical current a good way to know if your Solenoid need to be replaced is through a simple test. If you are having issues with your water flow not turning off, unplug it after the water is "stuck" on. If the water continues to flow your solenoid has gone bad and will need to be replaced.The Elkay 98466C Solenoid Valve Kit is for Water coolers with a serial number that is higher than 0807xxxxxwith or with a model number that ends with an "C" or "D". Use Elkay Part# 35981C for water coolers with a serial number that is lower than 0807xxxxx or a model number that ends with a "A" or "B". This solenoid is a genuine Elkay replacement part which means they are manufactured with the same quality and attention to detail that you come to expect from all your Elkay products. Elkay is a family-owned company and an American-owned and operated company. Their commitment to quality and customer satisfaction has lead to years of success in providing not only world class sinks, faucets, drinking fountains and award winning rapid bottle filling stations, but also in providing thousands of jobs that support families and communities around the country. Elkay prides themselves in their attention to detail and in consistent innovation and design. These company wide characteristics have led to Elkay becoming America's number-one selling stainless steel sink company.