GE water filters

Documenting the options in GE drinking water filters. There are three main functions:

• Taste and Odor
• Lead and Cysts
• VOC

There are three physical systems: single and dual stage sump systems and dual stage "twist and lock".

This should result in 3x3 = 9 filters but not all combinations exist. Here are the systems:

• FXU: 500 gallon single stage sump
• FXS: 600 gallon dual stage sump
• FQS: 160 gallon dual stage T&L

FXU has three filter types:

• TC: Taste and Odor
• LC: Lead and Cysts
• VC: VOC

Thus the three models: FXUTC, FXULC, FXUVC

FXS has only two filter types:

• LC
• VC

Thus these two models: FXSLC, FXSVC

FQS has two filter types:

• L: Lead and Cysts
• V: VOC
  

The two models are: FQSLF, FQSVF. The F seems to stand for faucet, as there is also a refrigerator/icemaker filter line.