The Astral Pool back mount pressure gauge kit is designed for compatible filter applications where pressure needs to be monitored through a 1/8 inch back-mount connection. A gauge kit like this is useful because it gives the user a clear visual reference for system pressure, helping make maintenance timing and filter-condition checks more straightforward.This replacement is especially useful when the original gauge is broken, inaccurate, fogged, or no longer readable. Installing a fresh gauge kit can restore the ability to monitor the filter with more confidence while also improving the service-ready appearance of the equipment.The 4404080104 is a practical replacement for compatible Astral Pool systems that need renewed pressure visibility and cleaner filter monitoring. Astral Pool back mount pressure gauge kit 1/8 inch connection format Designed for compatible filter pressure monitoring Useful when the original gauge is broken or inaccurate Supports cleaner and more dependable maintenance visibility