Brew perfect coffee every time with BUNN's Basket Coffee Filters. Our famous flat bottom and taller wall design ensures maximum flavor extraction while the tall fluted walls protect against overflow. The heavy weight paper slows the water flow for even interaction between hot water and coffee grounds. Designed for BUNN coffee makers, but also fits most home flatbottom coffee funnels. Get the rich taste and necessary oils you want, without the risk of any off-flavors.