R-2C, R2C 2 Pack
Is this R2C2 replacement at http://www.filtersfast.com/WaterPik-...cartridges.asp the replacement filter for WaterPik F-6C as well? I am not sure if there is a difference between F-6 (one of the models you have listed) and F-6C is the model I own. Thank you very much.
R2C2, R2C4 Replacement Cartridges
Yes, the R-2C is the correct replacement for the F-6C and well as the Waterpik F6. The R2C comes in a two pack and a four pack as listed below.
R-2C 4 Pack Filters
R-2C 2 Pack Filters