Fluval Self Primer Assembly Fluval Self primer assembly is suitable for: 104 External Filter (A200) 204 External Filter (A205) 304 External Filter (A210) 404 External Filter (A215) 105 External Filter (A201) 205 External Filter (A206) 305 External Filter (A211) 405 External Filter (A216) To keep up to date with HugglePets, follow us on Facebook! 104/404 Self Primer Assembly – MPN : A20020