Filter Media

Different types of Filter Media are used depending on the raw water quality and the treated water quality required.

Covalence EnviroTech offer a complete range of seven bedded filtration systems custom made to achieve the turbidity level of less than 1 NTU & Suspended solids less than 10 ppm. The Filtration beds comprises of the coarsest beds starting from Pebbles of 40 – 65 mm size to the finest layer of fine sand 0.8 to 1.6 mm size.

Filter Sand

Covalence EnviroTech Water filter sand is composed of sub-angular, hard, durable, and dense grains of predominately siliceous material. Extracted from a clean glacial sand deposit, Sai Minerals Water filter Sand physical properties make it among the finest available in the world for filtration applications.
Covalence EnviroTech water filter sand is washed, clean dried, and screened to meet exacting specifications with strict adherence to quality control.

Gravel & Pebbles

Covalence EnviroTech Gravel and water filter pebble is composed of sub-angular, hard, durable, and dense grains of predominately siliceous material. Extracted from a clean glacial deposit, Covalence EnviroTech Minerals Gravel and Pebble's physical properties make it among the finest available in the world for water filtration applications. Covalence EnviroTech water filter gravel is washed, kiln dried, and screened t o meet exact in g specifications with strict adherence to quality control.