For use with Zurn Elkay EZ, EMBAF, and HAC bottle fillers Direct replacement for original part Controls the water flow in your bottle filler This Zurn Elkay 1000004573 solenoid valve assembly is a direct substitute for the one that came with Zurn Elkay EZ, EMBAF, and HAC bottle fillers. This crucial assembly regulates water flow in your unit. If your original solenoid valve assembly is damaged or not working properly, replace it promptly to keep your bottle filler functioning.