This is the reverse osmosis filter set for the Hydrotech 101 Series for models 10103, 10104, 10105, 10106, and 10107.
The set does include:
(1) 41400008--sediment cartridges
(2) 41400009--carbon filters
These should be replaced every 12 months, whereas the membrane that is sold separately is to be changed only every 3-4 years.
The membrane is in our store for purchase.