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Quartz sand granulation 0.4-0.8mm, washed, in 25kg packaging, from the company ASTRAL.
This is the most widespread pool filter filling material.
The filter is filled with the quantity recommended by the manufacturer with a ratio (1-2mm)/fine (0.4-0.8) sand => 30% Coarse and 70% fine sand.
*First place the coarse sand and then the fine sand.
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.
