Solofill Cup is a refillable single serve filter cup for K-Cup brewers. Since the Solofill is reusable, you lessen your cost per cup as well as your environmental impact. This also allows you to brew your own favorite brands of gourmet coffee right in your Keurig Brewer. Self contained, with no separate filter or filter holders required, it has a unique Octaflo-Plus hot water distribution system for a superior tasting cup of coffee. The Solofill cup is compatible with most Keurig home brewers, just fill with your favorite ground coffee and close the lid. It is that easy! Solofill is dishwasher safe, and made with a stainless steel micro mesh filter for durability. The built in self tamper on the lid automatically packs coffee to a preset consistency. The Solofill filter cup also fits all types of K-Cup holders. With so many coffee options to choose from, the Solofill Filter cup makes experimenting with different roasts and flavors a breeze.