The Waterco side mount 2 inch 6-position multiport valve is designed for compatible filter systems that need side-mounted control over several operating modes. A multiport valve in this style is useful because it centralizes major filter functions in one assembly while matching layouts where side mounting is the correct configuration.This replacement is especially useful when the original side mount valve has become difficult to switch, is leaking internally, or is no longer trustworthy after years of service. The 6-position format makes it a practical choice for systems that rely on organized control across multiple filter functions.The 2290590 is a dependable solution when a compatible 2 inch Waterco system needs a side mount multiport valve that restores both fit and function. Waterco side mount 2 inch 6-position multiport valve Designed for compatible side-mount filter control systems Helps restore multi-function water routing Useful when the original valve is worn or unreliable Supports more complete filter-system operation