An alternative set includes 3 TX filters.
Replacing filters is simple and easy without the need for a maintenance technician

Blue Filter - Sediment Filter 5 microns
It filters out coarse dirt such as sand, rust, small stones, sediment, and any other deposits found in the water.
Filtration Capacity: 7600 Liters

Green Filter -
5 micron granular charcoal filter to filter chlorine and organic compounds (including odors and tastes).
Filtration Capacity: 5700 Liters

Green Filter -
5 micron granular charcoal filter to filter chlorine and organic compounds (including odors and tastes).
Filtration Capacity: 5700 Liters