Purenex C-20BB Big Blue Whole House Water Filter with Block Activated Carbon, 20-Inch
Block Activated Carbon filters – 20-Inch Big Blue Block Activated Carbon filters are similar in their performance to that of GAC filters, being made of fine coconut shell carbon they also do remove odors and tastes of many organic compounds, chlorine especially. Though, because this filters are made of a packed carbon , they offer a much finer filtration of suspended particles and dirt.