Gravel KREMER 3,15 - 5,6 mm, 25kg bag

3,15 - 5,6 mm - this fraction of sand is called quartz gravel and is used as a supporting layer in filters of household and drinking water supply, as a filler in various industries.
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​The sorption ability of quartz gravel makes it effective to use it as a filler in filters for refining petroleum products and water, in particular, for removing dissolved iron and manganese from it.