Water Filtration Gravel Pebble is composed of sub-angular, hard durable and dense grains of predominately siliceous material. The Gravel Pebble is extracted from a clean glacial deposit and its physical properties make it suitable for water filtration applications. The Gravel Pebble is washed, clean dried and screened to ensure safety of usage. Water Filtration Gravel Pebble can be availed in different specifications to cater to industrial requirement.