Zoo Med Replacement Sponge Combo for Turtle Clean 318 or Micro Clean 316 Filters

About this item Each package contains 2 mechanical and 2 biological sponges (6 of each total) Replacement filters are easy to change without any outside tools or equipment required Mechanical and biological filtration combine to keep the water in your aquarium or turtle tank healthy and crystal clear Both types of filter sponges were specifically designed for use with Zoo Med's Turtle Clean 318 or Micro Clean 316 Filter