Spare part or extension for CristalProfi i greenline filter Easy to use: insert into the filter CristalProfi i. Relevant height of a module: 7 cm Longer service life through extension by one module. The filter becomes 7 cm higher by adding a module Filter basket module, bio-filter sponge 25 ppi with inner pipe Package contents: 1 filter module for internal filter JBL Cristal Profi i greenline series (i60-i200), incl. foam & inner pipe