Sand is the filter material of the sand filter.
It retains the impurities present in the water.Compatible with most sand filters. Check the minimum grain size allowed
Particle size: 1/2.5 mm
COARSE FILTRATION SAND S36 1/2.5MM 25 KG - HYDRALIAN
€27.00Price
Instructions for use
Change the sand every 3 to 5 years, or even 7 years if your water is not calcareous and if you maintain your sand filter regularly.