The BWT Bestmax Pramium M filter cartridge - capacity: up to 3240 liters.* The Cartridges with "AromaPLUS" aromatic formula provide an innovative filt..
The BWT Bestmax Premium S filter cartridge - capacity: up to 900 liters.* The Cartridges with "AromaPLUS" aromatic formula provide an innovative filt..
The BWT Bestmax Premium XL filter cartridge - capacity: up to 5160 liters.* The Cartridges with "AromaPLUS" aromatic formula provide an innovative fi..