Mr. Heater Replacement Filter Kit Compatible with 30000 to 70000 BTU Reddy Heater Replacement Filter Kit Includes heavy duty gasket for outlet filter for various BTU kerosene heaters Inlet and outlet filters will fit all round air pump assemblies for most kerosene heaters 2003-2008 Compatible with 2003-2008 models: Reddy:R30, R35, R35A, R35B, R50, R50A-B, R55/A, R70, R70A, R70B, R70BT, R70CT, M30, M50A, M66D, Koehring: K30, K50A Compatible with 2003-2008 models: Master: B50A, B50B, B50D, B50E, B50F, B50G, B50H, B66D, B70B, B70BT, DESA: C35, C35A, C35B, C50D, C50E, C50F Compatible with 2003-2008 models: Knipco: F30, F50A, F50E, F50G, Remington: REM35, REM35A, REM50, REM50W, REM50A, REM50AW, REM50B, REM55, REM55A