JBL FilterBoost are specially cultured bacteria for the effective breakdown of organic matter in the filter. Reliably prevents the filter material becoming prematurely clogged with slime and other organic deposits and prolongs service life. The important pollutant-destroying bacteria are able to work longer at maximum efficiency and the filter needs changing or replacing less frequently.JBL FilterBoost+ removes mud bacteria for longer cleaning intervals+ prevents filter material clogging+ quickly breaks down organic matterApplication of JBL FilterBoostMineral granulate as support medium makes FilterBosst easy to use. Suitable for use in all filters with multi-layered filter material construction. Not suitable for internal filters with foam cartridges. Place the required amount of JBL FilterBoost granulate in even layers between 2-3 layers of filter material as close to the water inflow of the filter as possible. Use new granulate after cleansing the filter. Package contents sufficient