4C Water Source is an underground spring located in Lizada, Toril, Davao City, Philippines. Known to be the second best water potable / drinking water source in the world.

Department of Health (DOH) approved for purification process standard through Philippine National Standards for Drinking Water (PNSDW).

Laboratory test report proved that as per Aesthetic and Inorganic Constituents, 4C Purified Mineral water indicates high medicated / therapeutic components that fights various illnesses and diseases.