Sponge for the topmost cartridge of the JBL CristalProfi – e filter.
The sponge is neutral to both fresh and sea water and does not emit harmful substance
The kit includes the following components: 2 (+2 on request) sponges for the T-profile prefilter (10 ppi) 1 medium cleaning sponge (20 ppi) 1 fine cleaning sponge (30 ppi)