Growonix Green Coconut Replacement Carbon Filter 2.5" x 20" Fertilizer so it is sized against

so it is sized against leftover air volume

Its nutrient-holding capacity prevents nutrient leaching

Heat output sits at 2550 BTU

The thoughtful design includes inner ribbon stitching along the zipper

Growonix Green Coconut Replacement Carbon Filter 2.5" x 20" Fertilizer so it is sized againstGrowonix Green Coconut Carbon Filter for Chlorine and VOCs The green block coconut carbon filter is a 2. 5 x 20 in tall cartridge of high purity coconut shell activated carbon. It reduces chlorine, taste, odor, and certain VOCs, and it holds dirt well at low pressure drop. Free chlorine breaks down RO membranes over time, so this carbon stage protects the membrane downstream. It is NSF Standard 42 listed at a 10 micron rating. Capacity reaches 17,000