Coffee must be really hot! And it's best when filtered by hand. That's why the coffee experts at cilio have equipped their professional coffee filters with a longer spout. This allows them to fit common thermal carafes and bottles. The attachment doesn't tilt or slip – a support ring provides extra stability. The coffee stays hot even when your friend, who just wanted to stop by for a quick cup, gets caught up in conversation. At a picnic, you'll have aromatic coffee on hand, and on your way to vacation, you can skip the rest stop. The filters are available in two versions. One model is made of thick-walled ceramic, fired at around 1,300°C, while the other is made of acrylic and includes a practical coffee measure. Both attachments fit size 4 paper filters.