Replacement Anodes for ProEco IO Series Ionizers Part:RA 3004 (Fits IO 3001) 3450rpm 1Ø ODP motor type Titanium 3450rpm 1Ø ODP motor type 1 40974 706759409742 Red Filter Foam X X 40975 706759409759 Blue Filter Foam X X 40976 706759409766 Green Filter Foam X X 26075 706759260756 Filter Box X 26077 706759260770 X 26079 706759260794 Lid X X 26209 706759262095 Drain Valve Seal X X 26970 706759269704 Thermometer X X 27846 706759278461 Inside Cover Gasket X X 35047 706759350471 Red Blue Filter Foam Holder X X 35082 706759350822 Green Filter Foam Holder X X 35085 706759350853 Drain Valve X X 35086 706759350860 Lid Clamp X X 35089 706759350891 Drain Valve Guide X X 35103 706759351034 Drain Valve Seal Stabilizer X X 35290 706759352901 Connection Kit X X 35215 706759352154 Outlet Adapter X X depending on water quality and usage Ionizers significantly reduce maintenance and help you achieve crystal clear water without the use of chemicals