Sand Filters
The sand in a sand filter (#20 silica sand; 45 - 55 mm) is specially graded to trap particles in the 20 - 100 micron range. As a sand filter collects dirt, its efficiency increases, trapping more dirt.
Hayward Pro Series Sand Filter System
Waterways Sand Filter Systems
Jacuzzi Laser Sand Filter Systems
Columbia Sand Filter System
Filter Supplies and Chemicals