Naturally occurring attapulgite granular Media made up of a proprietary blend of Bentonite clay and Silica. Thermally activated at a high temperature to increase the porous surface area of its granules Approximate grain size of 0.25mm and a neutral pH of 6.7. Ideal for general product improvement, ZeoClear L is a highly effective media for color remediation and contaminant adsorption. It is commonly used for in-line color remediation.