Fleck Water Softeners is a division of Pentair Water Treatment and is probably the most recognized and most used water softener valve in the industry. Fleck Water Softeners have been produced and used for well over 50 years and are trusted by water purification professionals around the world. Fleck Water Softeners offer a number of valve options including time clock, metered regeneration, and digital controls. Fleck's newest and most feature-rich product is the Fleck 5600SXT. Fleck Water Softeners carry an excellent warranty and can be used in a multitude of applications.