Bunn Home Model Coffee Filters - Bunn developed the very first commercial paper coffee filter and has perfected paper porosity and filter structure to deliver consistently great-tasting coffee. They are 100% biodegradable, are tested to meet all FDA requirements. Bunn coffee filters are designed for Bunn home model brewers, but fit most flat-bottom coffee funnels. 1 case equals 12 packs of 100 filters, 1,200 filters total.