This is a Pentair C105-236PDA Impeller for 2 HP Full-Rated Dyna-Glas/Dyna-Max Series, Dyna-Pro/Dyna-Pro E Pumps, Dyna-Wave Series Pumps.
This is typically used with 2 HP Model MPEA6G-155L; MPRA6G-155L; MPRA6G-155LC, MPEA6YG-175L; MPEA6YG-175LS Dyna-Glas/Dyna-Max Series; Model MPEA6G-207L; MPE6F-207L; MPEA6YG-207L; MPE6YG-207L; MPRA6YG-207 Dyna-Pro/Dyna-Pro E; Dyna-Wave Series Pumps.