These filters use internal cartridges of standard dimensions, which may be of the following types, based on the different uses:

• Filtering only
• Decolorate only (with only carbon)
• Absorbent only (with silicates only )
• Filtering/absorbent
• Fitering /decolorate
• Absorbent/decolorate
• Filtering/absorbent/decolorate

According to the model, these filters can be used vertically or horizontally, or in systems with multiple units linked together in sequence or in series.