Response to Hi, Matt. The original pump model # SP2607X10 is for a 1HP pump. If the motor was increased to a 2.5HP (max) and now you would like to decrease the motor to a 2HP (max), the impeller and diffuser will need to be changed. The kit you will need is the Hayward Super Pump Tune Up Kit - GOKIT3 or GOKIT3SALT.

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