Check the listing for details. Made in USA FREE S/H WATERWISE Certified Organic 8606 Act. Carbon Post Filters . Color: White, Condition: New. Listed at 52.00 USD. California Prop 65 compliant carbonCarbon tested by independent third-party laboratoryIndividually wrapped/sealed24 grams of GACSurface area of over 256,800 sq ft (approx. 5.9 acres)Made in USACertified Organic Activated 3200 & 8800 Carbon Post Filters Item 8606. 6-Pack Post Filter Bags for the Waterwise 3200 or 8800. Replace every two months or after 60-80 gallons of water processed (whichever comes first). Carbon post filtration ensures high purity water after the distillation process is completed. Post filtration is used as a final treatment to effectively remove VOCs (volatile organic compounds). It significantly reduces trihalomethanes, synthetic organic compounds such as pesticides and hydrocarbons, and petrochemical byproducts such as benzene, toluene, and methyl tertiary-butyl ether (MTBE). Each disposable filter contains Granular, Activated, virgin Carbon (GAC) produced from coconut shell. High temperature steam activation reorders the carbon atoms to produce an extremely porous structure with a much larger surface area. This network of very fine pores is extremely effective at trapping contaminant molecules. The carbon has a typical pH of 8.0-8.5. Effective July 2019—Now twice the carbon—Made in USA.