This Waterco 75mm Threaded Lateral suits a variety of filters.

8 Required for:
S500 Eco, S750 Eco, S800 Eco, T400, S600 STD, S750 STD, S800 STD

4 Required for:
S900 Eco

12 Required for:
E600 Plus. SM, E602 Plus. SM, E702 Plus. SM, E600 Plus. TM, E602 Plus. TM, E702 Plus. TM

16 Required for:
S600 Eco, S602 Eco, S700 Eco, S702 Eco

*End Cap sold seperately