Description
This is an empty refillable filter cartridge for the 20 Big Blue housing by Hydronix. The cartridge measures 4.5 x 20 and includes filter pads at the top and bottom to prevent media fines from escaping the filter. The actual cartridge may vary in appearance than what is shown.
Empty 20 Big Blue cartridge;Measures 4.5 x 20;Fill with your own media or combination of medias;Includes filter pads at the top and bottom to prevent media fines from escaping the filter;Actual cartridge may vary in appearance than what is shown