Revitalizing shower filter (SF100)

YES - SFC100 cartridges are compatible with this model and are the default cartridge.
YES - SFC220 cartridges are compatible with this model.

NO - SFC400 HD cartridges are not compatible
NO - SFC500 HD cartridges are not compatible

 

Heavy-Duty shower filter (SF220)

YES - SFC220 cartridges are compatible with this model and are the default cartridge.
YES - SFC100 cartridges are compatible with this model.

NO - SFC400 HD cartridges are not compatible
NO - SFC500 HD cartridges are not compatible

 

HD Shower Filters (SF500)

YES - SFC500 HD cartridges are compatible with this model.
YES - SFC400 HD cartridges are compatible with this model.

NO - SFC100 cartridges are not compatible
NO - SFC220 cartridges are not compatible

 

What is the difference between SF100 & SFC100?

The 'C' in the product number identifies the product as a Cartridge:

SF = Shower Filter
SFC = Shower Filter Cartridge

If the number at the end of the product is the same, then the cartridge is the default one used in the shower filter. For example, the SF100 shower filter uses the SFC100 cartridge by default.