Pentair C1-271P1 Diffuser for Sta-Rite Inground Pool or Spa Pump Fits Pentair Sta-Rite Max-E-Pro series inground pool and spa pump models P6E6C-204L, P6E6D-205L, P6R6D-205L, P6E6E-206L, P6EA6E-205L, P6RA6E-205L, P6R6E-206L, P6EA6F-206L Also fits Pentair Sta-Rite Max-E-Pro series inground pool/spa pump models P6RA6F-206L, P6RA6YF-206L, P6R6C3-204, P6R6D3-205, P6R6E3-206, P6R62D3-186 Also compatible with Pentair Sta-Rite Max-E-Glas II/Dura-Glas II series inground pool and spa pump