Description Designed for use with AeroPress the paper filters are an essential part of the brewing process that keeps grounds from entering your cup. PRODUCT DETAILS Micro-Filters are for use in AeroPress original and AeroPress Go. Each pack contains 350 replacement AeroPress paper micro-filters. XL Paper Filters are for use in the AeroPress XL and each pack contains 200 paper filters. Removes grit, unlike most press-type coffee makers Biodegradable Compostable Made in the USA