Pentair American Products/PacFab Barrel Nut & Spring Assembly (53108900Z) lochinvar k300 topside panel is designed

k300 topside panel is designed for compatible spa control applications where a compact user interface is needed for two-output operation

Its 7-7/8 inch diameter and 14 inch length make it a fit-specific replacement for systems that need a moderately compact cartridge with matching end dimensions

Raypak heater top

Fits compatible P

Hydro-Quip CS500T-C9 control

Pentair American Products/PacFab Barrel Nut & Spring Assembly (53108900Z) lochinvar k300 topside panel is designedThe Pentair American Products PacFab Barrel Nut & Spring Assembly (53108900Z) is a replacement filter component for compatible pool and spa filtration equipment. Barrel nut and spring assemblies are small but important parts used in specific filter configurations to support proper fastening, tension, or serviceable connection points. When the original assembly is damaged, missing, corroded, or no longer functioning as intended, replacement can help