Filter gravel is used as a support media to filter sand and coal in water filters.
For maximum efficiency, filter gravel must possess the necessary attributes of hardness and be rounded rather than angular.
Filter Gravel is a hard, round, predominantly quartz aggregate. The filter gravel, like filter sand, contains hard durable particles with a slow breakdown rate. This helps to prolong filter media life.
|Dimensions||18 × 10 × 7 in|