Our External Filter range vary in body size. Although you can not use a smaller head unit on a larger size unit, some of them are interchangeable between being a UV and non-UV  model. Please see below;

  • 1000EF / 1000EF+ Unfortunately, these units are not interchangeable;
  • 1400EF / 1400EF+ Heads are interchangeable;
  • 2000EF / 2000EF+ Heads are interchangeable;
The range of spare parts for our External Filters is listed here.