20" x 4-1/2" Full-Flow (BB) Melt-Blown Filters

These 20″ x 4-1/2″ full-flow (BB) melt-blown filters remove dirt, rust, and sediment from water and can be used in conjunction with whole home filtration systems. Made from polypropylene, these cartridges have graded density layers:

  • The outer layers are more porous to catch larger particles.
  • The inner layers are finer microns to catch smaller particles.
  • 5 and 20 micron are the most popular for drinking water