WATERCO OPAL XL CARTRIDGE FILTER - 3.5 Bar pressure ratingOpal XL cartridge filters are designed to house an extra large filter cartridge, maximising its dirt holding capacity and minimising filter maintenance. The filter's dome lid allows easy access to the filter cartridge for removal, cleaning and installation in a matter of minutes. The Opal XL cartridge filters are ideal for applications where back washing may not be practical or areas where water may be scarce Extra Large Filter Cartridge Opal XL