CoalFilters Kitchen-Compost Bin Charcoal-Filter for Kitchen-Countertop Odor Remover Activated-Carbon (12packs, 6.7inch) Price: $15 (as of 25/01/2021 03:21 PST- Details)

12 PACK CHARCOAL FILTER: CoalFilters includes 12 sets of Charcoal Filter. Each filter is 6.7Inches in diameter, round, durable, with thickness of 10mm made from activated-charcoal for better filtration.
ONE SIZE FITS ALL: CoalFilters Charcoal Filter is 6.7Inches round shape diameter that can be cut to fit to your compost bin lids, for proper use and for better experience.
EXTRA THICK&DOUBLE THE ODOR PROTECTION: With an ultra thick design, and eco-friendly activated charcoal material, it will surely brings you fresh&clean indoor air and having higher carbon density for better absorption.

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