Response to Hello Ty.  The Sta-Rite Impeller model C105-238PB is NOT the correct impeller replacement.   At one time your impeller contained the additional identification mark of "R" or "S".  Sometimes the R or S was handwritten with a grease pen.  The key in proper impeller identification is the motor Horsepower (HP) and Service Factor (SF) identified on the motor's label.  If your motor is a .75HP, the C105-92PS impeller is correct.  If your motor is a .5HP with a SF of 1.3 or greater, the C105-92PS is correct.  If your motor is a .5HP with a SF of 1.25 or less, the C105-92PR is correct.  Dura-Glas Impeller For .75 Up rate (.5 Full Rate) C105-92PS   DURA-GLAS 1/2HP UP RATED IMPELLER - C105-92PR

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