20 BIG CTO10 - 20" X 4 1/4" CTO 10 micron for Chlorine/Taste/Odor
Coconut Shell Carbon block for chlorine, taste and odor. Perfect for use with tank water as a final filter after a 20-1 micron Gradient Density prefilter.
Fits all 20 inch Jumbo and Big Blue housings.
Please note the picture is not of the actual cartridge but it looks the same.