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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.
River Sands 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. The gravel is screened into three standard sizes which effectively supports the filter media.
They are typically packed in 20kg bags, or bulk bags up to 2.2 metric ton per bag. We are also able to cater to specific custom sized requirements.