Hydro-Quip CS4009-US2 Control [P1 P2 Bl Oz] [115v/230v] [5.5kW] (CS4009-US2) appliedcomputer The FC-2305 reference gives this

The FC-2305 reference gives this part practical value because filter cartridges work best when the replacement matches the intended housing and service application closely

Important upgrade for safety-focused pool and spa systems

5A applications where the original setup no longer performs the way it should

A complete wet-end replacement is especially practical when the motor remains serviceable and the goal is to renew the part of the pump that actually handles water movement without replacing more than necessary

Hydro-Quip CS4009-US2 Control [P1 P2 Bl Oz] [115v/230v] [5.5kW] (CS4009-US2) appliedcomputer The FC-2305 reference gives thisThe Hydro Quip CS4009 US2 control is designed for compatible spa control applications where pump, blower, and ozonator functions need to be managed through a matched control system. A control unit is useful because it serves as the operational hub of the system, coordinating supported components through one centralized platform. This version is especially useful when the setup calls for P1, P2, blower, and ozonator support with 115 and 230 volt