Why sometimes, green spots appear on the wall of the ceramic cartridge?

These spots usually appear when: - The maintenance is not done properly; - The water that is being filtered...

What are the advantages of the Stéfani water filters?

- They have INMETRO certification; - Attractive value for money; - Easy to handle and maintain; - Do not n...

What is the warranty of Stéfani products?

Stéfani products have 1-year warranty against manufacturing defects. Any damage caused by improper use or han...

What is the white layer that forms on the outside of the terracotta filter?

This white layer is called efflorescence and occurs because the terracotta filter can only keep the water fres...