MFR-50FRE52-430K MFR-50FRE52-430R MFR-50FRE52-432K MFR-50FRE52-432R MFR-50FRE52-43K MFR-50FRE52-43K2 MFR-50FRE52-43R MFR-50FRE52-43R2 MFR-50FRE52-442K MFR-50FRE52-442R MFR-50FRE52-44K2 MFR-50FRE52-44R2 MFR-50FRE52-453K MFR-50FRE52-453R MFR-50FRE52-45K3 MFR-50FRE52-45R3 MFR-50FRE52-464K MFR-50FRE52-464R MFR-50FRE52-46K4 MFR-50FRE52-46R4