Sponge Inlet Cover for Hang-On Back Filters (2 Pack)
This filter slides over the intake of your hang on back filters. It creates a great biological media to form the good bacteria your aquarium needs to thrive! This is also used if you want to prevent small fish, shrimp, snails, fry or other creatures from being sucked up into your filter.
You will receive Two (2) Sponges - Each Sponge is 3.25" Tall & 1.5" in Diameter
