Home / Sand / Silica Sand – 40kg Silica Sand – 40kg The sand in a pool sand filter is specially graded to trap particles. As a sand filter collects dirt, its efficiency increases, trapping more dirt. Categories: Pumps and Filters, Sand Tag: Sand Spread the love Related products Badu Galaxy 19 (1.10kW) Read more Badu Galaxy 23 (1.50kW) Read more Speck Badu Eco Wise 3 Cartridge Filter and Replacement Cartridge (Pools up to 62 000L) Read more Badu Koi Filter 3 Read more