Sand and Gravel Water Filtration Media - Red Flint MSDS | About Us | Site Map | Links | Contact Us | Choose Language Chinese-Simplified Chinese-Traditional Deutsch English Espanol Francais Francais Canadien Italiano Delivering the Highest Quality Industrial Minerals and Water Filtration Media since 1917 Red Flint Sand and Gravel delivers the finest water filtration and well pack media in the world. It is recommended by major well screen manufacturers and engineering water consultants alike. Red Flint specializes in meeting the tightly controlled specifications for water filtration while also f