This is the reverse osmosis filter set for the Great Tahoe Spring GTS-550-USA drinking water system. It may also have the labelon the system as TGI or Topway Global.

The set includes:(1)5 Micron 2.5″x10″ Sediment(2) 10 Micron 2.5″x10″ Carbon Block(1) 10″ Inline GAC(1/4″ Female with 2-3/8″ fittings and 2-1/4″ Fittings)
Replace the set 1 time every 12 months.Membrane is not included in this set, you change membrane every 3 years