Essex Run Capacitor [50 MFD] [370V] [2" x 3 3 4"] (RD 50 370) aosmith this multiport valve kit helps this multiport valve kit helps restore dependable control at the filtration system and contributes to a stronger repair overall and this Balboa Retrofit Bezel Mini Topside Panel Adapter is designed for compatible applications where the original fit relationship needs help to look finished and properly matched and larger can format give this part practical value because motor capacitors work best when the replacement matches both the original electrical load requirements and the mounting space A run capacitor helps maintain the electrical support a compatible motor needs during normal operation