Compatible with vitamix fc-50-sp and fc-30 foodcycler filters and other food waste disposers and electric kitchen composters PurifyLogix provide 4 bags of activated charcoal, remove two of these bags at a time and place them into each of the two filters in your composter in just the right portion. two replacements are available. Continuous, low-cost, replacement refills.each bag of activated carbon provides deodorizing power for up to 3 months or more, and you need to use two bags for each replacement, so a four-pack will last you more than six months, making it more affordable; Absorbs and neutralizes odors from the food recycler - keeping your kitchen fresh and clean so you never smell garbage again. Environmentally friendly, made from natural activated carbon. Have you ever been bothered by the stench of your kitchen trash can? Maybe it's time to replace the activated carbon inside your trash can. Our product includes 4 pack of activated charcoal for Vitamix FC-50-SP Foodcycler Smart Waste Kitchen Composter, one pack is enough to fill up the filters of the electric kitchen composter, which is highly effective in absorbing odors and giving you a fresh air and comfortable kitchen environment, you will be free from kitchen odors and feel good. With it, you will be free from kitchen odors and be in a better mood. Not only that, our activated carbon is economical and long lasting, one pack can be used for more than three months, more cost-effective. We look forward to your wonderful life experience!