Foam Sponge Block Filter 2" X 4" X 12" Aquarium Sump Refugium Wet-dry Filtration

This listing is for one sponge.

This foam block sponge works great for wet/dry, refugium, and basic sumps.
Measures 2" x 4" x 12"

This sponge works with all of our 20 and 30 gal kits.