Oase BioTec 5.1 and 10.1 Replacement Parts (Discontinued Models) Part:Red Blue Foam Holder You will get better water With Leaf in 42 You will get better water quality results the closer your flow rate is to the lower end of of the listed acceptable flow rates Heavy duty brass body and brass rods are far superior to normal plastic fill valves 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 1 BioTec 10