Jacuzzi Magnum Magnum Force 3 3.0 THP Impeller [All Dates] (05 0195 00 R) skimmerparts The 1 amp rating and The 1 amp rating and 1 8 inch NPT connection give this part practical value because pressure switches work best when the replacement matches both the electrical and plumbing characteristics of the original setup Correct matching matters because the wet end needs to preserve the original plumbing geometry and water path if the final repair is going to feel natural and dependable An impeller is central to how a pump delivers water movement through the wet end That keeps the repair efficient while restoring one of the most important internal performance parts